REMEMBER 4. What is the difference in length? Carrot 14 cm Show the difference in length two ways. Write an equation for each. The difference in length is Pea pod 5 cm cm. ​

Answer:

$69.98

Step-by-step explanation:

8.5% of 64.50 is around 5.48 or to be exact, 5.4825 which there are no more dollar denominations beyond the hundredth place so it would be 5.48. 64.50+5.48 is $69.98.

Answer:

$69.98

Step-by-step explanation:

It is percent increase.

So, 100% + 8.5% = 108.5% which is 1.085.

64.50 × 1.085 = 69.9825

we need to round to 2 decimal places

$69.98

Considering the confidence interval, the non-reasonable value for the true mean weight of the residents of the town is:

A value that is less than 184 or more than 202.

The confidence interval for a population mean is given by the point estimate of this mean, which is the sample mean, plus/minus the margin of error.

For the context of this problem, these parameters are given as follows:

Hence the lower bound of the interval is:

193 pounds - 9 pounds = 174 pounds.

The upper bound of the interval is:

193 pounds + 9 pounds = 202 pounds.

All the values that are in the interval are reasonable values for the population mean, hence, in the context of this problem, the not reasonable values are given as follows:

A value that is less than 184 or more than 202.

(as they would be outside the confidence interval).

The options are not given, hence the answer was given in general terms.

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Check the picture below.

Graph C appears to show a proportional relationship between x and y. Because it is a straight line across the origin.

What is a proportional relationship?

A line graph is a particular sort of graph in which the connecting segments of straight lines represent the data points. A straight line is made up of many points connected at each end.

A straight line with a beginning point of represents a proportionate relationship on a graph (0, 0). By computing a second point and then connecting the two with a straight line, the graph is produced.

As a result, graph C seems to indicate that x and y are proportionate. due to the fact that it crosses the origin directly.

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Answer:

5 pounds

Step-by-step explanation:

1 kg = 2.205 lbs.

2.25×2.205

⇒4.96125

The price for 7 bags of trail mix and 4 bananas is  15.45  dollars.

The expression for x trail bag and y bananas is 1.35x + 1.50y.

In maths, an expression is a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.)

Therefore, the cost of a bag of trail mix at the corner store is 1.35 dollars  and the cost of a banana is 1.5 dollars.

The cost for 7 bags of trail mix and 4 bananas can be computed as follows;

let

x = bags of trail mix

y = number of banana

Therefore,

1.35x + 1.50y

1.35(7) + 1.50(4) = 9.45 + 6 = 15.45

Therefore, let's find the expression for x trail bag and y bananas.

Hence,

1.35x + 1.50y

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The linear equation in the table is written as:

y = (1/4)*x + 6

The linear equation in slope-intercept form is written as:

y = m*x+ b

Where m is the slope and b is the y-intercept.

We know that if a line passes through two points (x₁, y₁) and (x₂, y₂), then the slope is:

m = (y₂ -  y₁)/(x₂ - x₁)

Here we can use the first two points on the table:

(-4, 5) and (0, 6), so the slope is:

m = (6 - 5)/(0 + 4) = 1/4

And because of the point (0, 6) we know that the y-intercept is 6, then the line is:

y = (1/4)*x + 6

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[tex]C=3\times 10^8~\frac{m}{s}\hspace{5em}R=80000\implies R=8\times 10^4 \\\\[-0.35em] ~\dotfill\\\\ R=\cfrac{CT}{2}\implies 2R=CT\implies \cfrac{2R}{C}=T\implies \cfrac{2(8\times 10^4)}{3\times 10^8}=T \\\\\\ \cfrac{16\times 10^4}{3\times 10^8}=T \implies \cfrac{16}{3}\times\cfrac{10^4}{10^8}=T\implies \cfrac{16}{3}\times\cfrac{1}{10^8\cdot 10^{-4}}=T \\\\\\ \cfrac{16}{3}\times\cfrac{1}{10^{8-4}}=T \implies \cfrac{16}{3\times 10^4}=T\implies \cfrac{16}{30000}=T\implies \cfrac{1}{1875}=T[/tex]

Answer:

try to show it step by step

The expression that uses the commutative property of addition and the associative property of multiplication to rewrite the expression 3 (28) +7  is 7+(3-2).8

The commutative property of addition states that a change in the order of the numbers being added does not affect the sum. We can define commutative property of addition as adding the numbers in any order will give the same answer.

a + b = b + a

3(2x8) + 7 = 7 + 3(2x8)

The associative property of multiplication says that while multiplying three numbers, regardless of the way the numbers are grouped, the end result will always be the same.

a(b x c) = (a x b) c

7 + 3(2x8) = 7 + (3.2)8

Therefore, the expression that uses the commutative property of addition and the associative property of multiplication to rewrite the expression 3 (28) +7  is 7+(3-2).8

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The slope of the road is 159/53

What is a slope?

How steeply a line slopes from left to right is known as its slope. By dividing a line's rise, or vertical change, by run, or horizontal change, one can calculate a line's slope, the slope of a line is always constant (it never varies).

To calculate the slope of a line using the formula

m = rise / run = (y₂ - y₁)/(x₂ - x₁)

where, m = slope

(x₁, y₁) = coordinates of the first point in the line

(x₂, y₂) = coordinates of the second point in the line

Here, we have

rise = 795

run = 265

by using the slope formula,

m = rise/run

m = 795/265

m = 159/53

Hence, the slope of the road is 159/53.

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The probability that the proportion of airborne viruses in a sample of 533 viruses would differ is 0.0062.

From the information, the scientist claims that 9% of viruses are airborne and the proportion of airborne viruses in a sample is 533 viruses.

The requirement to solve the probability between z-values is to know that the probability between the z-values is the difference between the probability of the greatest z-value and the lowest z-value.

The mean is 0.09 and the standard deviation is 0.012.

The probability will be:

= 1 - P[Z < (0.12 - 0.09/0.013)]

= 1 - P(Z < 2.5)

= 1 - 0.99379

= 0.0062

This shows the concept of solving probability regarding z values.

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Answer:

a) 24 minutes

b) 20 mph

Step-by-step explanation:

  time= 12 min

         [tex]\sf = \dfrac{12}{60} \ hour[/tex]

 speed = 60 mph

[tex]\sf \boxed{distance =speed * time}[/tex]

                [tex]\sf = 60 * \dfrac{12}{60}\\\\ = 12 \ m[/tex]    

a) Speed = 30 mph

      [tex]\sf \boxed{time = \dfrac{distance}{speed}}[/tex]

               [tex]\sf = \dfrac{12}{30}\\\\ = \dfrac{2}{5} \ hour\\\\ = \dfrac{2}{5}*60\\\\= 2 * 12\\\\= 24 \ minutes[/tex]

It will take 24 minutes.

c) time = 36 minutes

           [tex]\sf = \dfrac{36}{60} \hour[/tex]

 [tex]\sf \boxed{speed= \dfrac{distance}{time}}[/tex]

            [tex]\sf = \dfrac{12}{ \dfrac{36}{60}}\\\\\\ = 12* \dfrac{60}{36}\\\\= 20 \ mph[/tex]

Average speed = 20 mph

Proved that the triangle ABW ≅ triangle DCW

In the given question,

The length of WA = The length of WD

The measure of angle 5 = The measure of angle 7

Here we have to prove that one angle and two sides of the triangle ABW is equal to the one angle and two sides of the triangle DCW

Consider the triangle ADW,

In the triangle ADW the length of the WA is equal to the length of WD.

Therefore the measure of angle A is equal to the measure of angle D.

So in triangle ABW and the triangle DCW, one side and two angles are equal.

Therefore the triangle ABW and triangle DCW are congruent

Hence, proved that the triangle ABW ≅ triangle DCW

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The required angles of x and y are x = 65° and y = 25°

Given is a triangle which is right angled

Thus the sum of the right angled triangle is 180 degrees

So we will write

y° + x + 90 = 180 [ angle sum property of the triangle ]

90 + x + y = 180

let the above equation be considered as equation 1

Since two sides are equal

thus the other angle will also be x°

Also the angle adjacent to 40° can be found out by linear angle property

thus according to this :

x + x + ( 90 - 40 ) = 180 °

2x + 50 = 180

thus subtracting 50 on both sides we get

2x = 130

x = 65°

Thus by equation 1

we can rewrite it as

y + x + 90 = 180

65 + 90 + y = 180

155 + y = 180

this implies y = 180 - 155

y = 25°

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Answer:

6 and - 18

Step-by-step explanation:

let the 2 integers be a and b , then

a + b = - 12 → (1)

[tex]\frac{a}{b}[/tex] = - 3 → (2)

multiply both sides by b ( b ≠ 0 )

a = - 3b

substitute a = - 3b into (1)

- 3b + b = - 12

- 2b = - 12 ( divide both sides by - 2 )

b = 6

substitute b = 6 into (1) and solve for a

a + 6 = - 12 ( subtract 6 from both sides )

a = - 18

the two integers are - 18 and 6

The expression 3.2^2 - 1 and 10 - 0.33 * 2 should be joined by less than to form an inequality

Inequality refers to a way of representing relationships between variables at the left hand side of equation to the variables to the right hand side of an equation.

The signs used in inequality are of 4 types namely

The given expression is solved as follows

3.2^2 - 1

= 10.24 - 1

= 9.24

10 - 0.33 * 2

= 10 - 0.66

= 9.34

The two expressions can be joined as below

9.24 < 9.34

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The quotient estimated value of 394.6/9 is 43.84

A quotient is the number which is generated when we perform division operations on two numbers. Basically, it is the result of the division method. There are four main terminologies used in the arithmetic division such as divisor, dividend, quotient and remainder. For example, 15/3= 5 .The number that is being divided ( 15) is called the dividend, and the number that it is being divided by (3) is called the divisor. The result of the division(5) is the quotient.

Therefore the quotient of 394.6/9= 43.84

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Answer:

i think it 8h

Step-by-step explanation:

The line represents that x is anywhere from negative infinity to 1:

x < 1

Answer: x<1

Step-by-step explanation:

X is less than one on the graph because everything on the darker line is the solution.

Ex:

-1<1

The value of q after solving the expression, q/3+2/3 = 8q/3-5/3, is 1.

According to the question,

We have the following expression:

q/3+2/3 = 8q/3-5/3

Now, taking 3 as the denominator on both the sides:

(q+2)/3 = (8q-5)/3

Now, 3 in the denominator on the left hand side can be divided by 3 in the denominator on the right hand side:

q+2 = 8q-5

Now, changing the sides of this expression:

8q-5 = q+2

Moving q from the right hand side to the left hand side:

8q-q-5 = 2

7q -5 = 2

Moving 5 from the left hand side to the right hand side:

7q = 2+5

7q = 7

q = 7/7

q = 1

Hence, the value of q after solving the given expression is 1.

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The freezing point of water in relation to the freezing point of acetone, is 169 °F

The difference between the freezing point of water (how much warmer the freezing point of water is) and the freezing point of acetone can be found by the formula:
= Freezing point of water - Freezing point of acetone

Freezing point of water = 32°F

Freezing point of Acetone = – 137°F

In relation to the freezing point of acetone, the degrees warmer that the freezing point of water is:

= 32 - (- 137)

= 32 + 137

= 169 °F

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The value of a from the equation is a = 0.32

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be 2 1/7 : 15a = 5/14 : 0.8

Now , on simplifying the equation , we get

15/7  : 15a = 5/14 : 0.8

Multiply by 14 on both sides of the equation , we get

( 15 x 2 ) : 15a = 5 : 0.8

30 : 15a = 5 : 0.8

So , on simplifying the equation , we get

30 / 15a = 5 / 0.8

Divide by 5 on both sides , we get

6 / 15a = 1 / 0.8

Multiply by 0.8 on both sides of the equation , we get

15a = 6 x 0.8

15a = 4.8

Divide by 15 on both sides , we get

a = 4.8 / 15

a = 0.32

Therefore , the value of a = 0.32 or a = 8 / 25

Hence , the value of a in the equation is a = 0.32

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85

Step-by-step explanation:

Given,

[tex]{ \pink{ \sf{h(x) = 1 - 7x}}} \: { \to} \: { \tt{eq}^{n} (1)}[/tex]

Put x = 9 in Eqⁿ (1)

[tex]{ \pink{ \sf{h(9) = 1 - 7(9)}}}[/tex]

[tex]{ \pink{ \sf{h(9) = 1 - 63}}}[/tex]

[tex]{ \red{ \boxed{ \pink{ \sf{h(9) = - 62}}}}}[/tex]

Let

[tex]{ \green{ \sf{23 - h(9)}}} \: { \to} \: { \tt{ {eq}^{n} (2)}}[/tex]

Substitute the value of h(9) in Eqⁿ (2)

[tex]{ \green{ \sf{23 - ( - 62)}}}[/tex]

[tex]{ \green{ \sf{23 + 62}}}[/tex]

[tex] = { \pink{ \boxed{ \red{ \sf{85}}}}}[/tex]

With 95% confidence, the margin of error is 19.523, population mean is (253.477, 292.523) and the change in cost over the two-year period is 19.21%.

In the given question,

The average cost per night of a hotel room in New York City(y) = $273

Number of rooms in hotel(n) = 45.

The sample standard deviation(s) = $65

(a.) Now finding the margin of error, with 95%(0.95) confidence.

The formula of margin of error is

ME= [tex]z_{\alpha /2}\times \frac{s}{\sqrt n}[/tex]

Now find the value of [tex]z_{\alpha /2}[/tex].

[tex]\alpha[/tex] = 1-0.95

[tex]\alpha[/tex] = 0.05

[tex]\alpha[/tex]/2 = 0.05/2

[tex]\alpha[/tex]/2 = 0.025

Now the value of [tex]z_{\alpha /2}[/tex]

[tex]z_{\alpha /2}=z_{0.025}[/tex]

From the standard table of z is 2.015.

Now putting the value in formula

ME= 2.015 × 65/√45

ME= 2.015 × 65/6.708

ME= 2.015 × 9.689

ME= 19.523

Hence, with 95% confidence, the margin of error is 19.523.

(b) Now finding .the 95% confidence interval estimate of the population mean.

Population Mean = y ± ME

Population Mean = 273 ± 19.523

Population Mean = {(273-19.523), (273+19.523)}

Population Mean = (253.477, 292.523)

(c) Now two years ago the average cost of a hotel room in New York City was $229 then the change in cost over the two-year period is

The change in cost = difference between the cost/old cost

The change in cost = (273-229)/229 *100

The change in cost = 44/229 *100

The change in cost = 0.1921 *100

The change in cost = 19.21%

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The value of x for the triangle by the mid point theorem is obtained as 5.

For the given diagram in the question.

As, the sides of the triangle is divided in equal parts.

By the mid -point theorem-

(1/2)24 = x + 7

12 = x + 7

x = 12 - 7

x = 5

Thus, the value of x for the triangle by the mid point theorem is obtained as 5.

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Usando una relación trigonometrica veremos que la anchura del rio es 66.4 pies.

Podemos ver la situación como si trabajaramos con un triangulo rectangulo, donde la torre de 50 pies es un cateto y la anchura del rio es el otro cateto. (la imagen de este triangulo se puede ver en la imagen al final)

Usando la relacion:

tan(a) = (cateto opuesto)/(cateto adjacente)

Podemos escribir:

tan(37°) = 50ft/x

Resolviendo para x, la anchura del rio:

x = 50ft/tan(37°) =66.4 ft

El rio tiene un ancho de 66.4 pies.

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Answer:

x=20

Step-by-step explanation:

It looks like the opposite end of the 70 is angle between I and D. So assuming that angle is also 70 I would subtract 90 and 70 which equals 20. X=20

Answer:

a. -1 + (-3)

b. -9 + 5

Step-by-step explanation:

the sum of two numbers = -4

a.

two addends have the same sign

Since the sum is negative, then both addends must be negative.

Answer: -1 + (-3) =

b.

two addends have different signs

One addend is positive, and one addend is negative. Since the sum is negative, then the addend with the greater absolute value must be negative.

Answer: -9 + 5 =