A cube-shaped box has a surface area of 384 cm2. Jason stacks 12 of these boxes to make a display for his store. What is the total volume in cubic centimeters of the boxes in the display?

Answers

Answer 1

The total volume in cubic centimeters of the boxes in the display is 4608√6.

Therefore the answer is 4608√6.

The formula for finding surface area of a cube of side a is

A = 4a²

The formula for finding volume of a cube of side a is

V = a³

Given that surface area of a cube is 384 cm², that is

4a² = 384 cm²

a² = (384/ 4) cm²

Therefore, a = 4√6 cm

Now volume of a single cube can be found by

V = a³

V = (4√6 cm)³

V = 384√6 cm³

Therefore volume of 12 such cubes is

= 12V

= 12×384√6 cm³

= 4608√6 cm³

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Related Questions

given an alphabet $\sum$ of $m$ symbols, how many palindromes are there of length $n$? prove that your answer is correct.

Answers

Given an alphabet of m symbols, the number of possible palindromes with length n is: m^(n/2) is n is even and m^((n+1)/2) if n is odd.

A palindrome is defined as a set of characters that are the same forwards and backwards. Example pqrrqp

Suppose we have m symbols in an alphabet and we want to construct palindromes with length n.

If n is even, there are n/2 free choices, each is picked from m symbols. Hence, the number of possibilities is m^(n/2)If n is odd, there are (n+1)/2 free choices, each is picked from m symbols. Hence, the number of possibilities is m^((n+1)/2)

Example:

The alphabet costs of 10 symbols, for example lower case a,...,j, and we want construct palindromes of length 5. To make a palindrome with length of 5, we need 3 symbols form {a,b,..,j} for example hiaih. Hence, the number of possible palindromes is: 10³ = 1000

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Brett likes to tip his taxi cab driver 20%. If his cab fare came to $38.75, how much will he tip the driver

Answers

Answer: $7.75

Step-by-step explanation:

The question says that Brett tips his taxi driver 20%.

This means that for a certain taxi ride, 20% of the fare f will be given as a tip.

His fare in this case came to $38.75, so the answer is 20% of 38.75

which is $7.75

What are the Algebraic rules for these two problems.
I struggle in algebra and have been stuck on these two for 30 minutes.
(8th grade algebra)

Answers

Answer: No answer

Step-by-step explanation:

U apparently decided to leave out the question, but from what I can see they are asking you for the shifting of graphs. So  just count not how far the graph has shifted in the x or y direction

Amy is putting a new floor in her bathroom. She created a scale drawing
of her bathroom floor using a scale of inch = 1 foot. In the drawing,
the bathroom measures 3 inches by inches. Amy is purchasing square
tiles that measure foot on each side. The cost of each tile is $3.00.
How much will Amy pay for the tiles for her bathroom floor?
A. $126.00
B. $168.00
C. $252.00
D. $504.00

Answers

Amy pay $504 for the tiles for her bathroom floor.

What is scale factor?

A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure. It should be remembered that the scale factor only affects how big a figure is, not how it looks.

Given:

Scale: 1/2 inch = 1 foot

As, the bathroom measures 3 inches by 3 1/2 inches.

Actual measurement of the bathroom:

3 x 2 = 6 ft

3 1/2 x 2 = 7 ft

So, Area of the bathroom = 6 x 7 = 42 ft²

The side length of 1 tile is said to be 1/2 ft.

Therefore, the area of 1 tile would = 1/2 x 1/2 = 1/4 ft².

Number of tiles that would cover 42 ft² would be:

= 42 / (1/4)

= 42 x 4

= 168 tiles

Thus, Amy pay

= 168 x 3

= $504.

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Pls answer quick as possible !

Answers

Answer:

(A.) & (D.) are your answers i hope you have a great day

Step-by-step explanation:

a random sample of 415 potential voters was interviewed 3 weeks before the start of a state-wide campaign for governor; 223 of the 415 said they favored the new candidate over the incumbent. however, the new candidate made several unfortunate remarks one week before the election. subsequently, a new random sample of 6 30 potential voters showed that 317 voters favored the new candidate. do these data support the conclusion that there was a decrease in voter support for the new candidate after the unfortunate remarks were made? give appropriate statistical evidence to support your answer.college board

Answers

As P-value > significance level (i.e.,0.05), so, null hypothesis can't be rejected. There is no sufficient evidence to support our claim that there was a decrease in voter support for the new candidate after the unfortunate remarks were made.

We have two random samples related to election. For first Sample : Voters was interviewed 3 weeks before the start of a state-wide campaign for governor. Sample size, n₁ = 415

Sample mean, X₁ = 223

Sample proportion for sample one :

[tex]p₁ = \frac{X₁}{n₁ }= \frac{223}{ 415} = 0.537[/tex]

Consider sample 2ⁿᵈ for several unfortunate remarks one week before the election.

Sample size, n₂ = 630

Sample mean, X₂ = 317

Let the significance level be 95% .

Sample proportion for sample two :

[tex]p₂ = \frac{X₂}{n₂ }= \frac{317}{630} = 0.503[/tex]

A two-proportion Z-test is a statistical hypothesis test used to determine whether two proportions are different from each other. Consider the null and alternative hypothesis,

[tex]H₀ : p₂ = p₁

Hₐ : p₂ < p₁[/tex]

Now, we have to check the hypothesis by two- proportion Z-test. Formula is,

[tex]Z = \frac{( p₁ - p₂)}{ \sqrt{p(1- p)( \frac{1}{n₁} + \frac{1}{ n₂}})}[/tex]

p is mean of both the samples where k₁ is successes out of n₁ data in sample 1 and k₂ is successes out of n₂ data in sample 2.

[tex]p = \frac{k₂+ k₁} { n₂ + n₁} = 0.512[/tex]

Now, plugging all known values in above formula,

[tex]Z = \frac{( 0.537 - 0.503)}{ \sqrt{0.512(1- 0.512)( \frac{1}{415} + \frac{1}{ 630}})}[/tex]

[tex]Z = \frac{0.034}{ \sqrt{0.512(0.488)(0.00399 )}}[/tex]

[tex]Z = \frac{0.034}{ 0.0316} = 1.076[/tex]

The p-value or z-critical value for two tailed test is 0.2819. We see that 0.281>0.05 ( significance level). So, Null hypothesis can't be rejected. Therefore, null hypothesis is true i.e., there is no decrease in voter support for the new candidate.

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Her sister is twice as old as Cheryl. Find her sister's age in terms of x.

Answers

Her sister is twice as old as Cheryl ,her sister's age in terms of x is 2x years old.

Why is it twice age?Your sister is 11 years older than you since she was twice as old as you when you were 11 (she was 112 = 22 years old).Add your age at the time of your daughter's birth to the day of her birth. For instance, if your daughter was born on January 1, 2010, and you were 25 at the time, you will be double her age on that day in 2035.If one's age is x now, one's age will be nx in the future. Age n years from now equals x + n if the age at currently is x. Age n years ago equals x - n if the current age is x.

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a)x/5=3
b)x/2=8.5
Find the value of x

Answers

Answer:

a. x=15

b. x=17

Step-by-step explanation:

Answer:

A) The equation "x/5=3" can be solved by multiplying both sides by 5 to get rid of the fraction. This gives us "x=15". So the value of x that makes the equation true is 15.

B) The equation "x/2=8.5" can be solved by multiplying both sides by 2 to get rid of the fraction. This gives us "x=17". So the value of x that makes the equation true is 17.

MARK AS BRAINLIEST!!!

If theta is an angle in standard position and its terminal
side passes through the point (-9,-5), find the exact value
of CSC(theta) in simplest radical form.

Answers

The exact value of CSC(theta) in simplest radical form is √106/6√7.

What is angle?

Angle is a two-dimensional figure formed by two rays, or line segments, that have a common endpoint. It is usually measured in degrees or radians, and is used to describe the amount of rotation between two line segments. Angles can be acute, right, obtuse, straight, or reflex depending on the measure of the angle. Angles can also be classified as complementary, supplementary, vertical, adjacent, interior, or exterior.

CSC(theta) is the reciprocal of the Sine of theta and can be found by using the Pythagorean Theorem. The distance from the origin to the point (-9,-5) is the hypotenuse of a right triangle, which has sides of length 9 and 5.

The hypotenuse is equal to the Sine of theta, so by using the Pythagorean Theorem we can find the Sine of theta:

Sin(theta) = √(9^2 + 5^2) = √(81 + 25) = √106.

Therefore, CSC(theta) = 1/Sin(theta) = 1/√106 = √106/106 = √106/6√7.

Thus, the exact value of CSC(theta) in simplest radical form is √106/6√7.

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Give an example of how decisions by the supreme court, under chief justice John Marshall, strengthened federal power.

Answers

One of the most important decisions handed down by Chief Justice John Marshall and the Supreme Court was Marbury v. Madison, in 1803.

What is power in math?

Power in math is the number of times a number is multiplied by itself. For example, when calculating the number 3 to the power of 4, the result is 81 — 3 multiplied by 3 multiplied by 3 multiplied by 3. When written as an equation, it would look like 3^4 = 81. Power can also be used to calculate exponents, which are the number of times a number is multiplied by itself and then added together.

This case established the concept of judicial review, the power of the Supreme Court to declare laws unconstitutional. This was a significant decision because it gave the Supreme Court the power to interpret the constitution and to determine the limits of federal power. This ruling gave the Supreme Court the ability to strike down acts of Congress and state laws that violated the constitution. This ruling effectively strengthened the power of the federal government by allowing it to enforce its laws over those of the states. The ruling in Marbury v. Madison was a major milestone in the development of federal government power and has been cited in numerous court decisions since then.

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What is the derivative of log 5?

Answers

After solving the question, the derivative of log 5x is [tex]\frac{1}{5}[/tex].

In the given question, we have to find the derivative of log 5x.

The given function is log 5x.

The chain rule has a specific case known as the logarithm rule. It is helpful when determining the derivative of a function's natural logarithm. According to the logarithm rule, this derivative is equal to the function's derivative multiplied by 1, or 1.

Now finding the derivative of log 5x.

log 5x = [tex]\frac{d}{dx}[/tex]log 5x

As we know that [tex]\frac{d}{dx}logx = \frac{1}{x}[/tex]

log 5x = [tex]5\times\frac{1}{5x}[/tex]

log 5x = [tex]\frac{1}{x}[/tex]

Hence, the derivative of log 5x is [tex]\frac{1}{5}[/tex].

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(x-1)^2=1-x
______________________________________________________________[tex]sqrt(x-1)^2=1-x[/tex]

Answers

The value of x is 1.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

√(x - 1)² = 1 - x

√(x - 1)² can be written as (x - 1).

Now,

x - 1 = 1 - x

x + x = 1 + 1

2x = 2

x = 1

Thus,

x is 1.

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WILL GIVE BRAINLIST!!

Answers

Answer:

what is the question exactly?

Step-by-step explanation:

Answer:

80

Step-by-step explanation:

hope i helped

WILL GIVE BRAINLIEST FOR SOLVING: If you see this number on a calculator, 3.14E5, how can you express it in standard form?

Answers

The scientific number 3.14E5 in standard form is 314,000.

What is standard form?

In mathematics, the most typical way to represent a specific element is called standard form. Every mathematical concept, including big numbers, tiny numbers, equations, and lines, has a standard form. It is the simplest form in which lines, numbers and equations can be represented.

The given scientific number is 3.14E5.

Scientific notation is mostly used by scientists to handle very small or very large numbers. Using calculators to convert length, weight or mass units, often results are displayed in scientific notation.

E5 represents the value 10^5.

So, when the scientific number is converted into exponent form, it is -

3.14e5 = 3.14 x 10^5

Then the result is converted into whole number to get the standard form -

3.14 x 10^5 = 314,000

Therefore, the standard form is 314,000.

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The function f(x)=5x converts x nickels to pennies. Find a function that converts x pennies to nickels. Then convert 50 pennies to nickels

Answers

The function f(x) converts x nickels to pennies and the function g(x) converts x pennies to nickels. Applying g(50) to 50 pennies gives 10 nickels.

The function g(x)=x÷5 converts x pennies to nickels.

Applying g(50) to 50 pennies:

g(50)=50÷5

=10 nickels

The function f(x)=5x converts x nickels to pennies. This means that for every nickel, 5 pennies are produced. To convert pennies to nickels, the inverse of this function is needed. The inverse of f(x)=5x is g(x)=x÷5. This function converts x pennies to nickels. When g(50) is applied to 50 pennies, the result is 10 nickels. In other words, 50 pennies can be converted to 10 nickels. To summarize, the function g(x)=x÷5 effectively converts pennies to nickels, allowing the user to easily convert between the two currencies.

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An 8-foot-long board is leaning against a building. The angle formed by the ground and the board is 70 ∘ . What is the distance from the building to the base of the board? Round to the nearest tenth.

Answers

The distance from the building to the base of the board is 2.7feet ( nearest tenth).

What is angle of elevation?

The angle of elevation is an angle that is formed between the horizontal line and the line of sight. If the line of sight is upward from the horizontal line, then the angle formed is an angle of elevation.

The angle of elevation from the point of the board is 70°.

The wall of the building is the opposite to the angle and the the distance from the building to the base of the board is adjascent. The height of the board is the hypotenuse.

Therefore,

cos (tetha) = adj/hyp

cos 70° = x/ 8

x= cos 70° × 8

x = 2.7 feet ( nearest tenth)

therefore the The distance from the building to the base of the board is 2.7feet

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The distance from the building to the base of the board is; 2.7 ft

How to use trigonometric ratios?

The six trigonometric ratios are expressed as;

sine (sin) = opposite/hypotenuse

cosine (cos) = adjacent/hypotenus

tangent (tan) = opposite/adjacent

cotangent (cot) = 1/tan

cosecant (cosec) = 1/sin

secant (sec) = 1/cos

Now, we are since the board is leaning against the building and the angle formed by the board with the ground is 70°, then we can say that;

x/8 = cos 70

where x is the distance from the building to the base of the board

x = 8 * cos 70

x = 8 * 0.3420

x = 2.736

Approximating to the nearest tenth gives;

x = 2.7 ft

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Store A offers a DVD for $19.95. Store B offers the same DVD for $22.50 with a 20% discount. Which is the better deal, and what is the price at Store
B?
Select the best answer from the choices provided.
O A. Store A has the better deal; Store B's price is $22.30
OB.
Store A has the better deal; Store B's price is $27.00
OC. Store B has the better deal; Store B's price is $18.00
OD. Store B has the better deal; Store B's price is $17.50

Answers

Answer:

OC

Step-by-step explanation:

price at store A= $19.95

price at store B= 80%

                         = (100-20) x ($22.50/100)

                         = $18.00

since the price at store B is $18.00, it has better deal as it's cheaper.

correct option= OC

What is 72 rounded to the nearest 10th?

Answers

Rounding is a mathematical process in which a number is adjusted to the nearest multiple of a specified value. For example, when rounding 72 to the nearest 10th, it is rounded down to 70.

Rounding is a mathematical process used to make numbers easier to work with. It involves adjusting a number to the nearest multiple of a specified value, usually a multiple of 10, 100, or 1000. When rounding a number, the number is adjusted to the nearest multiple of the specified value. This can be done by looking at the digit to the right of the number being rounded. If the digit is 0 through 4, the number stays the same. If the digit is 5 through 9, the number is rounded up. For example, when rounding 72 to the nearest 10th, the digit to the right is 2, so the number stays the same. However, if the number was 73, the digit to the right would be 3, so the number would be rounded up to 80. Rounding is an important concept in mathematics, particularly when dealing with large numbers, as it allows for easier manipulation of the numbers.

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The perimeter of a square is 64 m
the length of one side is ___
the area of the square is ___

can someone give me the answers please, thank you (:​

Answers

Answer: 16m, 256m².

Step-by-step explanation: A square is a four sided polygon with congruent (equal) angles as well as sides, lastly the perimiter is the sum of all the sides. Letting the sides of such square of perimeter be represented by x. Since a square has 4 sides, 4x = 64m, and thus x = 16m (side length). The area is the product of the height and the width of the square, since all sides are equal, that is 16m x 16m = 256m².

16 m is the length of one side and 256 m² is the area of the square.

Let the side of the square be "S"

The formula for the Perimeter of a square = 4 × S

Since 4 times its Side is 64 m (given)

Length of one side  = 64/4  = 16 m

We can say, Side (S) = 16 m

Formula for the Area of a Square = S × S = 16 × 16  = 256 m²

Hence, the length of one side is 16 m and the area of the square is 256 m².

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What is the complete factored form of X² 9?

Answers

After solving, the complete factored form of [tex]X^2-9[/tex] is (X-3)(X+3).

In the given question, we have to find the complete factored form of [tex]X^2-9[/tex].

To find the factored form we have to follow some rule:

(1) Find a GCF for the numbers in the expression, and then take a look at each variable or expression independently to identify the GCF. If the variable or expression appears in every term, factor out the term with the smallest power.

(2) A GCF can be factored out by writing the GCF outside of the parentheses and dividing each term by the GCF that is inside the parentheses.

To solve this expression we can use the formula [tex]a^2-b^2[/tex] = (a+b)(a-b)

[tex]X^2-9[/tex] = [tex](X)^2-(3)^2[/tex]

[tex]X^2-9[/tex] = (X-3)(X+3)

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The complete question is:

What is the complete factored form of [tex]X^2-9[/tex]?

What kind of line is x =- 2?

Answers

X = -2 is a vertical line, a straight line that goes straight up and down and does not go from side to side.

A vertical line is perpendicular to the x-axis. The equation for a vertical line is x = some constant, where the constant is the x-coordinate of every point on the line. In the equation x = -2, the constant is -2.

This means that every point on this line has an x-coordinate of -2, no matter what the y-coordinate is. Every point on the line (x, y) will have an x-coordinate of -2, while the y-coordinate can be anything.

For example, the point (x, y) = (-2, 7) is on the line x = -2, while the point (x, y) = (-2, -3) is also on the line x = -2. Since the equation x = -2 is a constant equation, the line will never intersect the x-axis; instead, it will always stay at the same x-coordinate of -2.

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How do you integrate Xe 7x?

Answers

you can also work with a professional services provider to develop a custom integration solution for your specific needs.

Xe 7x can be integrated into a system in a few ways. The first way is to use the Xe 7x SDK (Software Development Kit) to build a custom solution that integrates the Xe 7x platform with existing systems. This SDK provides a set of tools, libraries, and samples which allow developers to create applications that leverage the Xe 7x platform.

The second way is to use the Xe 7x Connector. This is a pre-built solution that allows you to quickly integrate Xe 7x into existing systems. The Connector provides a set of APIs that allow you to access the Xe 7x platform, as well as several libraries and samples to get you started.

The third way is to use the Xe 7x Marketplace. This is an online store where you can find and purchase pre-built solutions that integrate Xe 7x with various other platforms.

Finally, you can also work with a professional services provider to develop a custom integration solution for your specific needs.

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360÷6 long division
How do I find my answer?

Answers

Answer:There you go

Step-by-step explanation:

Step 1: Take the first digit of the dividend from the left. ...

Step 2: Then divide it by the divisor and write the answer on top as the quotient.

Step 3: Subtract the result from the digit and write the difference below.

Step 4: Bring down the next digit of the dividend (if present).

360 | 6
——————-
36 - 60
36
00
. 00

Answer = 60

Ramon is filling cups with juice. Each cup is shaped like a cylinder and has a diameter of 4.2 inches and a height of 7 inches. How much juice can Ramon pour into 6 cups? Round to the nearest hundredth and approximate using π = 3.14.

96.93 cubic inches
553.90 cubic inches
581.59 cubic inches
2,326.36 cubic inches

Answers

581.59 cubic inches juice  can Ramon pour into 6 cups

What is Three dimensional shape?

a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.

Given that Ramon is filling cups with juice.

The shape of the cup is like cylinder.

The cup has a diameter of 4.2 inches and height of 7 inches.

We need to find the amount of  juice can Ramon pour into 6 cups

Volume of one glass=πr²h

=3.14×(2.1)²×7

=3.14×4.41×7

=96.9318

Now for 6 glasses we have to calculate

=6×96.932

=581.59 cubic inches

Hence, 581.59 cubic inches juice can Ramon pour into 6 cups

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Answer:581.59 cubic inches

The first person to answer was correct.

Step-by-step explanation:

I took the quiz so you don't have to!

Outfitters creates Delta apparel and sells the
T-shirts for $15 a piece. The plain gray
T-shirt costs the company $3.50 per shirt
and the screen printing expense is $253
total. Write an equation to represent the
number of shirts Outfitters must sell to
break even.
Define the variables:
Equation:
How many shirts must be sold to break
even?

Answers

Outfitters must sell at least 0.4 shirts, which is approximately equal to 0 shirts, to break even.

What do you mean by equation?

An equation is a mathematical statement that states that two expressions are equal. It usually consists of variables, coefficients, and constants, connected by operations such as addition, subtraction, multiplication, and division. Equations are used to model relationships between different quantities and to solve problems in various fields such as physics, engineering, and economics. For example, the equation y = mx + b represents a straight line in two-dimensional space, where y is the dependent variable, x is the independent variable, m is the slope of the line, and b is the y-intercept.

Let's define the variables:

x = the number of shirts Outfitters must sell to break even

c = the total cost of production (plain gray T-shirt + screen printing) = $3.50 + $2.50 = $6.00

p = the selling price of the T-shirt = $15.00

The equation to represent the number of shirts Outfitters must sell to break even can be written as follows:

x * p = x * c

Solving for x:

x = c / p

x = $6.00 / $15.00

x = 0.4

Outfitters must sell at least 0.4 shirts, which is approximately equal to 0 shirts, to break even. However, since they can't sell fractional shirts, they must sell at least 1 shirt to break even.

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5/4 gallons of water fill 5/6. How many gallons of water fill the entire bucket?

Answers

Answer:

purple

Step-by-step explanation:

the bible says so

What are the zeros of the polynomial function
ƒ(x) = -x³ + 2x² + x − 2

Answers

The zeros of the polynomial function ƒ(x) = -x³ + 2x² + x − 2 are the x-values at which the function equals zero. The solution is x = 1, x = 2, and x = -1.

What is polynomial?

A polynomial is a mathematical expression consisting of variables, coefficients, and exponents. Its basic form is a monomial, which is a single term with a coefficient and an exponent. Polynomials may also include higher degree terms of two or more terms connected by addition, subtraction, and multiplication. Polynomials are used to model a variety of situations in mathematics, engineering, economics, and other fields.

This can be determined by solving the equation ƒ(x) = 0. A cubic equation  of this form can be solved by factoring, so the solution is x = 1, x = 2, and x = -1. These three values are the zeros of the polynomial function ƒ(x) = -x³ + 2x² + x − 2.

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suppose that 5% of the people with blood type o are left handed, 10% of those with other blood types are left-handed, and that 40% of the total population have blood type o. if you randomly select a left-handed person, what is the probability that this person will have blood type o? shaalaa

Answers

Given that 5% of people with blood type o are left-handed, the likelihood that this person has blood type o is 9/44.

what is probability ?

A branch of mathematics called probability theory determines the likelihood that an event will occur or that a statement is true. A probability is a number between 0 and 1, where 1 denotes certainty and about 0 denotes how probable an event is to occur. The possibility or likelihood that a specific event will occur is expressed numerically as a probability. Probabilities can also be expressed as percentages from 0% to 100% or as numbers between 0 and 1. the proportion of occurrences among all equally likely alternatives that lead to a certain occurrence relative to all possible outcomes.

given

E2 =Event that the person selected is of other than blood group O

(E3)=Event that selected person is left handed

∴P(E1)=0.30,P(E2)=0.70

P(E3/E1)=0.06andP(E3/E2)=0.10

By using Baye's theorem, P(E1/E3)=P(E1)⋅P(E3/E1)P(E1)⋅P(E3/E1)+P(E2)⋅P(E3/E2)

=0.30×0.06 /0.30⋅0.06+0.70⋅0.10

=0.0180/0.0180+0.0700

=0.0180/0.0880=180 /880=9 /44

Given that 5% of people with blood type o are left-handed, the likelihood that this person has blood type o is 9/44.

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A coin collector has a bag of 50
pennies. What is the "percent
abundance" of the pre-1982
pennies?

Answers

The percent abundance of the post-1982 pennies is 56%.

What is percent abundance?The proportion of a given element's all-natural isotopes is known as its percent abundance.percentage of abundant post-1982 penniesFollowing are the calculations for the post-1982 penny's percent abundance;Post-1982 coins divided by all pennies multiplied by 100% equals percent abundance.The proportion of atoms with a particular atomic mass that can be found in a naturally occurring sample of an element is known as the relative abundance of an isotope.

percent abundance =  (28) / (50) x 100%

percent abundance =  56%

Thus, the percent abundance of the post-1982 pennies is 56%.

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What are the solutions to −3/4x+2=(1/4)x+1? Select each correct answer.
A. -1
B. 0
C. 1
D. 2
E. 3

Answers

Answer: C and E

Step-by-step explanation: After combining like terms and solving for x by using the quadratic formula, you get x = 3 and x = 1

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