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The perimeter of a rectangle is 84 feet. The ratio of the width to the length is
2:5. Find the length and the width.
The width of the rectangle is 12 feet and the length is 30 feet.
What is perimeter?The perimeter of a shape is determined by adding the length of all the sides and edges enclosing the shape.
Given that, The perimeter of a rectangle is 84 feet. The ratio of the width to the length is 2:5.
Let the width be 2x and length be 5x,
Perimeter = 2(l+w)
2(2x+5x) = 84
2x+5x = 84/2
2x+5x = 42
7x = 42
x = 42/7
x = 6
Therefore, width = 6x2 = 12
Length = 5x6 = 30
Hence, The width of the rectangle is 12 feet and the length is 30 feet.
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To rent a certain meeting room, a college charges a reservation fee of $49 and an additional fee of $5.80 per hour. The math club wants to spend less than $72.20 on renting the meeting room. What are the possible amounts of time for which they could rent the meeting room? Use t for the number of hours the meeting room is rented, and solve your inequality for .
The possible amount of time for which they could rent the meeting room is 1, 2, and 3 hours.
In the question,
It is given that,
Reservation fee is $49.
Additional fee is $5.80 per hour.
The math club can spend maximum of $72.20.
The inequality will be:
49 + 5.8*t < 72.20
5.8*t < 23.2
t < 4
Hence, the possible amount of time for which they could rent the meeting room is 1, 2, and 3 hrs.
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Suppose loga(2) = b and loga(3) = c. Compute loga(108/a^3)
In accordance with algebra properties and relationship between logarithms and powers, the logarithm ㏒ₐ (108 / a³) is equal to the pseudolinear expression 2 · b + 3 · c - 3.
How to solve a logarithmic expression
In this problem we must determine the base of a given set of logarithms by using algebra properties and relationships between powers and logarithms. Now we proceed to solve:
Step 1 - We get the following equations:
㏒ₐ 2 = b, ㏒ₐ 3 = c
Step 2 - Now we add the other logarithm:
㏒ₐ (108 / a³)
Step 3 - By logarithm properties:
㏒ₐ 108 - ㏒ₐ a³
㏒ₐ (2² · 3³) - 3 · ㏒ₐ a
㏒ₐ 2² + ㏒ₐ 3³ - 3 · 1
2 · ㏒ₐ 2 + 3 · ㏒ₐ 3 - 3
Step 4 - By Step 1:
2 · b + 3 · c - 3
The logarithm ㏒ₐ (108 / a³) is equivalent to 2 · b + 3 · c - 3.
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The pair of points (−6, y) and (4, 8) lie on a line with a slope of 5/2. Set up and solve for the missing y-value using the slope formula. Show all work to receive credit.
Given the slope of the line and the pair of points, the missing y - value can be found to be - 17
How to find the missing y - value?The slope formula is:
y = Slope(x) + y - intercept
Using the point (4, 8), the y - intercept can be found by the formula:
8 = 5/2 (4) + y - intercept
y - intercept = 8 - 10
y - intercept = -2
The missing y value is therefore:
y = Slope(x) + y - intercept
= -6 (5/2) - 2
= -15 - 2
= - 17
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IM BEGGING FOR HELP !!! find the volume of each shape and then compare do not reduce your fractions.
Answer:
64/125 > 150/512
Step-by-step explanation:
4/5 *4/5 *4/5 = 64/125 (also equals 0.512)
5/8 * 6/8 * 5/8 = 150/512 (also equals 0.293)
Therefore: 0.512 > 0.293
find the value of 3sin x-2cos y
Answer:
D is the answer I thinnk
Step-by-step explanation:
A train traveled at the same speed for 9 hours. It went 320.55 miles in all. To the nearest hundredth of a mile per hour, how fast was the train going?
The train's speed was= 56.7 miles per hour
What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.acc to our question-
Entire distance = 210 miles + 130 miles = 340 milesTotal time = 3.5 hours and 2.5 hours = 6 hoursAverage speed = distance/ time = 340 miles/ 6 hours= 56.66666666666 miles per hourRounding to the nearest tenth= 56.7 miles per hourHence, The train's speed was= 56.7 miles per hour
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Let d represent:
I do not drink bottled water.
Lett represent:
I eat pizza.
What is the symbolic representation of the following statement?
I do not eat pizza or I do not drink bottled water
I eat pizza or drink bottled water, for example, is a symbolic representation of the following statement.
What is meant by symbolic representation?Traditionally, symbolic representation is defined as the representation of a principal, such as a nation, through a symbol, such as a flag, that evokes specific meanings and emotions about the nation. The use of physical or psychological processes to represent an object (either another object or an idea) in a symbolic form is referred to as symbolic representation (Carlson, Sroufe, & Egeland, 2004). A written character or mark that is used to represent something; a letter, figure, or sign that is traditionally used to represent some object, process, etc. (Oxford English Dictionary). Figures denoting the planets, signs of the zodiac, and so on are examples of something visible that represents something else that is invisible by association or convention. Synonyms include symbol, symbolization, and symbolization.To learn more about symbolic representation, refer to:
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Find the ratio of men to women in a bowling league containing 12 men and 8 women. Write in lowest terms
Answer:
[tex]\frac{3}{2}[/tex]
Step-by-step explanation:
Divide the top and bottom on the fraction by 4
A ditch used to drain storm water has the shape of a trapezoid with the wider base being 24 feet and the height being 6 feet. The shorter base has an unknown length of x-feet. Set up and solve an equation to find the value of x if the drainage ditch as an area of 96 square feet.
The value of the shorter base which is x is 8 feet.
What is a trapezium?A trapezium is a quadrilateral with exactly one pair of opposite sides parallel to each other. The trapezium is a two-dimensional shape that appears as a table when drawn on a sheet of paper.
It has four sides and four vertices.
The trapezium is made of a rectangle and triangles.
Area of a trapezium = 1/2 (a + b ) h
where a = small base, b = big base and h = height.
from the above, b = 24 feet, h = 6 feet, a = x and area = 96 square feet
substituting the above into the equation
1/2 ( 24 + x) x 6 = 96
6(24 + x) = 96 x 2
6(24 + x ) = 192
multiplying the terms by 6
144 + 6x = 192
6x = 192 - 144
6x = 48
x = 48/6
x = 8 feet
In conclusion, the value of x is 8 feet
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Identify the y intercept of this line b
Answer: b= (0,4)
Step-by-step explanation:
The 'b' value in a line is the y-int. of a linear equation. That means you need to determine where the linear equation intersects with the y-axis. In this scenario it intersects at the point (0,4)
Write a polynomial function with rational coefficients so that P(x) has given roots: -4 and 2i.
P(x) is a polynomial function having rational coefficients that has given roots is: P(x) = x³ + 2x² + 4x + 8.
Define the term roots of polynomial?The values of a variables for which the provided polynomial equals zero are referred to as the roots of a polynomial. If an is the polynomial p(x) root, then p(a) = 0.P(x) has given roots: -4 and 2i.
A radical is always preceded by a pair of plus & minus signs.
As a result, there would be another root -2i.
All of the roots are -4, -2i, + 2i.
As, the number of roots given are 3, thus the polynomial formed ill be cubic.
The roots in terms of the polynomial can be written as-
P(x) = (x - (-2))(x - 2i)(x + 2i)
P(x) = (x + 2)(x - 2i)(x + 2i)
Simplifying,
P(x) = x³ + 2x² + 4x + 8
Thus, P(x) is a polynomial function having rational coefficients that has given roots is P(x) = x³ + 2x² + 4x + 8.
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What is an equation of the line that passes through the points (3,-3) and (3,-6)
Answer:
x = 3
Step-by-step explanation:
You want the equation of the line through points (3, -3) and (3, -6).
Vertical lineThe two points have the same x-value, indicating the line through them is a vertical line. That will have an equation of the form x = c.
The x-value of the given points is 3, so the equation is ...
x = 3
__
Additional comment
We note that the answer box is pre-filled with "y =". There is no "y =" equation that will go through these points. The slope is undefined, so the slope-intercept form of the equation cannot be used.
if 15% of adults in a certain country work from home, what is the probability that fewer than 60 out of a random sample of 500 adults will work from home?
The probability that fewer than 60 adults will work from home will be 2%.
we have to use the Normal probability distribution to find the probability
In a normal distribution with mean μ, SD σ, z-score Z of a measure X is given by
Z = (X-μ)/ σ
here,
15% adults work from home , So p= 0.15
n = 500
∴ μ = np = 500(0.15) = 75
σ = [tex]\sqrt{np(1-p)}[/tex]
σ = 7.98
Now we have selected adults(60) less than n (500)
So using the continuity correction , the probability is P(X< 60 - 0.5)
= P( X< 59.5)
which is the p-value of Z when X = 59.5
∴ Z = (X-μ)/ σ
Z = (59.5 - 75)/7.98
Z = - 1.98
so the p-value is 0.02
0.02 = 2% probability that fewer than 60 adults will work from home.
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Find the value of (2.4) · (1.3). Show your reasoning.
The evaluation of the expression (2.4) · (1.3) gives 3.12
How to evaluate the expression?From the question, we have the following expression that can be used in our computation:
(2.4) · (1.3)
Express as products
This gives
(2.4) * (1.3)
Remove the brackets
So, we have the following representation
2.4 * 1.3
Evaluate the product
3.12
Hence, the solution is 3.12
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all in image, please help asap
The angle that is same side exterior angle to ∠ABC is ∠EFH.
How to find angles?When parallel line are cut by a transversal line, angle relationships are formed such as corresponding angles, vertically opposite angles, alternate angles, same interior angles, etc.
AD and EG are parallel to each other.
CH is a transversal line to the parallel lines.
Therefore, let's find the angle that has the same relationship as same side exterior angles as angle ABC.
Two angles that are exterior to the parallel lines and on the same side of the transversal line are called same-side exterior angles.
Same side exterior angles are supplementary.
Therefore,
∠ABC and ∠EFH are same side exterior angles.
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One has a face value of $32.50, and one has a face value of $26.50. He uses a coupon and gets both tickets at One-fourth off. If he pays with a $50 bill, how much change should Tamir receive?
The change that Tamir would have to receive would be: $5.75
How to solve for the changeWe would first have to solve for the total amount of the tickets that Tamir has received
This would be given as
32.5 + 26.5 dollars
= 59 dollars
Given that he has a 1/4 off in both of the tickets the amount that he would have to pay would be
59 - 1/4 * 59
59 - 14.75
= $44.25
This is the amount that he would have to pay for the coupons.
Given that he used a $50 bill, we would have to solve for his change.
This would be solved as $50 - $44.25
= 5.75
Hence his change is going to be $5.75
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A carton of milk holds 10 cups. a recipe for strawberry milkshake requires 3/4 of a cup of milk. how many recipes could you make with the carton of milk.
Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes. To determine the unit price for each item, his daughter sets up and solves the system of equations shown.
6p + 3n = 18 and 2n = p
6(2n) + 3n = 18
12n + 3n = 18
15n = 18; n = $1.20
Onions cost $1.20 per pound.
Analyze the daughter’s solution. Which statements are true? Check all that apply.
The equation 2n = p should be 2p = n.
The equation 6p + 3n = 18 should be
6n + 3p = 18.
The actual cost of the onions is $3.00 per pound.
Potatoes cost $0.60 per pound.
Potatoes cost $1.50 per pound.
Potatoes cost $2.40 per pound.
The correct statements are,
(1) The equation 2n = p should be 2p = n.
(2) The actual cost of the onions is $3.00 per pound.
(3) Potatoes cost $1.50 per pound.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Mr. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice as much as potatoes.
The equation will be formed as,
6p + 3n = 18
n = 2p
Substitute the value of n = 2p in the equation,
6p + 3(2p) = 18
6p + 6p = 18
12p = 18
p = $1.5
The cost of an onion is,
n = 2p
n = 1.5 x 2
n = $3
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Choose the correct word(s) to complete the snetence below. A group of related facts that use the same numbers is called a(n)
Answer: The answer is Fact Family
Step-by-step explanation:
Find the range of values which satisfy the following:
8x-11>5 and 15(6x+2)>-150
x>
Answer: ______
The range of values that satisfy the given inequalities, 8x - 11 > 5 and 15(6x+2) > -150, is x > -2 OR x > 2
Solving Linear Inequalities: Determining range of valuesFrom the question, we are to determine the range of values which satisfy the given inequalities.
The given inequalities are
8x - 11 > 5 and 15(6x+2) > -150
To determine the range of values that satisfy the inequalities, we will solve each of the inequalities separately
Solving 8x - 11 > 5
Add 11 to both sides
8x - 11 + 11 > 5 + 11
8x > 16
Divide both sides by 8
8x/8 > 16/8
x > 2
Solving 15(6x+2) > -150
Divide both sides by 15
15(6x+2)/15 > -150/15
6x + 2 > -10
Subtract 2 from both sides
6x + 2 - 2 > -10 - 2
6x > -12
Divide both sides by 6
6x/6 > -12/6
x > -2
Putting the two solutions together,
x > -2 OR x > 2
Hence, the solution is x > -2 OR x > 2
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If Clare labels books at 15 books per minute and she takes no breaks, then it would take her minutes to finish labeling all the books.
The time taken to label 750 books if Clare labels books at 15 books per minute is 50 minutes.
How to calculate the time used?In this situation, Clare volunteers at a library during the summer and has to label 750 books and she labels books at 15 books per minute and she takes no breaks.
Let the time taken to label the 750 books be represented by x.
This will be illustrated as:
1/x = 15/750
Cross multiply
(15 × x) = (750 × 1)
15x = 750
Divide
x = 750 / 15
x = 50
The time is 50 minutes.
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Complete question
Clare volunteers at a library during the summer and has to label 750 books. Clare labels books at 15 books per minute and she takes no breaks, then it would take her minutes to finish labeling all the books.
Slope:
Y-intercept
Equation:
y-intercept: (0,60)
This is given in the table.
Slope: [tex]m = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]
Using (1,50) and (2,40):
[tex]m = \dfrac{40 - 50}{2-1} = \dfrac{-10}{1} = -10[/tex]
The slope is -10.
Using the slope-intercept form (y=mx+b) and the fact that we found m=-10 and b=60 from the table, the equation is:
y = -10x + 60
If x =-5, what is the value of 2x^+6x
2x^2+6x
2(-5)^2+6(-5)
2(25)+6(-5)
50+6(-5)
50+(-30)
50-30
20
the team is going to a race and can only enter 5 participants. what is the probability of randomly selecting a race squad of 5 participants with exactly 3 women? round your answer to three decimal places. enter your solution into variable
The probability that the squad will have exactly three women members is 0.389
Total number of people in CU Boulder triathlon = 21
Number of Men = 9
Number of Women = 12
We are told that a 5-member squad is selected and now we want to find the probability that the squad will have exactly 3 women members.
Thus;
P(exactly 3 womens) = (12C3 * 9C2)/(21C5)
P(exactly 3 womens) =7920/1716
P(exactly 3 womens) = 0.389
Hence, the probability that the squad will have exactly three women members is 0.389
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Level J > N.1 Convert rates and measurements: customary units W5N convert 31 yards=_____ inches
Answer:
Example 1 : Convert 2 feet into inches. Solution : Here, we convert bigger unit into smaller unit. So we have to multiply. 2 feet = 2 x 12 inches = 24 inches Example 2 : Convert 3.5 yards into inches. Solution : Here, we convert bigger unit into smaller unit…
a publisher reports that 45% of their readers own a particular make of car. a marketing executive wants to test the claim that the percentage is actually different from the reported percentage. a random sample of 300 found that 37% of the readers owned a particular make of car. determine the p-value of the test statistic. round your answer to four decimal places.
The test statistic's p-value is -2.785.
According to A publisher, 45% of its readers own a particular make of car.
Claim: An executive in marketing would like to test the claim that the percentage is different from what is reported.
[tex]H_{o}[/tex]: p = 0.45
[tex]H_{a}[/tex]: p ≠ 0.45
a random sample of 300 found that 37% of the readers owned a particular make of car.
= 37% × 300
= (37 ÷ 100) × 300
X = 111
n= 300
One sample proportion test should be used.
p-vector = x ÷ n,
p-vector = 111 ÷ 300
p-vector = 0.37
The test statistic's formula,
= [tex]\frac{p-q}{\sqrt{\frac{pq}{n} } }[/tex]
test statistic = [tex]\frac{0.37- 0.45}{\sqrt{\frac{0.45(1-0.45)}{300} } }[/tex]
≈ -2.7851
thus, the p-value of the test statistic is -2.7851.
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a high school statistics class wants to estimate the average number of chocolate chips in a generic brand of chocolate chip cookies. they collect a random sample of cookies, count the chips in each cookie, and calculate a 95% confidence interval for the average number of chips per cookie (18.6 to 21.3). which interpretation of the 95% confidence interval is valid?
Answer:
Step-by-step explanation:
On September 1st there are 5 bacteria in a jar. The population of bacteria doubles each day. How
much bacteria will be there at the end of the month
If its a 28 day month then 671088640
29 days 1342177280
30 days 2684354560
and 31 days 5368709120
Triangle QRS and its dimensions are shown.
s,. 6 centimeters,. 12 centimeters,. q,. 15 centimeters,. r,.
Which measurements in centimeters represent the dimensions of a triangle that is similar to triangle QRS?
The dimensions that represent a similar triangle to triangle QRS are given as follows:
B. 10 cm, 20 cm, 25 cm.
What are similar triangles?Similar triangles are two triangles that have the same angle measures.
These triangles will also have proportional side lengths, because of the sine/cosine/tangent relations in a right triangle and the law of sines for non-right triangles.
In this problem, we want a triangle that is similar to a triangle with the dimensions presented as follows:
s,. 6 centimeters,. 12 centimeters,. q,. 15 centimeters,. r,.
Hence all these dimensions have to be multiplied by the same scale factor.
Then, option B is correct, as the ratios between the lengths are given as follows:
10/6 = 20/12 = 25/15 = 5/3.
Meaning that all sides were multiplied by 5/3.
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Answer Answer is B, thank you, I just love to help.
Step-by-step explanation: