13. A rectangle has a width that is twice as long as its length and an area of 722 square inches. Find the length of the diagonal, rounded to the nearest tenth.

Answers

Answer 1

Answer:

The diagonal of the rectangle is approximately 42.5 inches.

Step-by-step explanation:

The area of a rectangle is given by the following formula:

area = width*length

In this case the width = 2*length, therefore we have:

area = 2*length²

722 = 2*length²

2*length² = 722

length² = 361

length = sqrt(361) = 19 inches

width = 2*length = 2*19 = 38 inches

The diagonal forms a right triangle with the sides of the rectangle, where it is the hypotenuse. Therefore we can use Pytagora's theorem:

diagonal = sqrt(length² + width²)

diagonal = sqrt(19² + 38²) = 42.485 inches

The diagonal of the rectangle is approximately 42.5 inches.

Answer 2

Answer:

42.5 inches

Step-by-step explanation:

l = length

w = 2l

A = 722

A = l*w

722 = l * 2l

722 = 2l^2

Divide each side by 2

361 = l^2

Take the square root of each side

sqrt(361) = l

w = 2 * sqrt(361)

We want to find the diagonal so we can use the pythagorean theorem

a^2+ b^2 = c^2 where c is the length of the diagonal

l^2 + w^2 = c^2

(sqrt(361)) ^2 + (2 sqrt(361))^2 = c^2

361+1444 = c^2

1805 = c^2

Take the square root of each side

sqrt(1805) = sqrt(c^2)

42.48529 = c

To the nearest tenth

42.5 =c


Related Questions

The floor of a living room is 7m by 5m. How many 50cm square tiles are required?

Answers

Answer

7m x 5m = 35, then multiply by 100, so then the answer is 3,500

Step-by-step explanation:

The number of tiles that can fit in the living room is 7000.

What is the arithmetic operator?

Arithmetic operators are four basic mathematical operations in which summation, subtraction, division, and multiplication involve.,

As per the given dimension of the living room,

7m by 5m

Area = 7 x 5 = 35 m²

Area of one tile = 50 cm² = 0.005m²

With this surface area the number of tiles that can be fit,

35/0.005 = 35000/5 = 7000

Hence "The number of tiles that can fit in the living room is 7000".

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sos please help me......

Answers

Answer: 170

Step-by-step explanation:

Hemisphere volume formula

V = (2/3)πr3

(2/3)•(3.14)•(2.5)^3=32.7 (33)

Cylinder volume formula

V=πr^2h

(3.14)(2.5)^2(7)=137.4 (137)

137+33=170

URGENT PLEASE


Rhonda kept track of the cats at a shelter where she volunteers. She measured how many times per day each cat ate, and she also ranked their activity level on a scale from 1 to 10 each day. She found the line of best fit for the data has the equation y=0.23x+4.1, where x represents the activity level and y represents the number of meals eaten.


If a cat had an activity level of about 9, then it's likely to have eaten about _[blank]_ meals.


Enter the value that correctly fills in the blank.


Round to the nearest whole number, if necessary, like this: 42

Answers

If a cat had an activity level of about 9, then it's likely to have eaten about 6 meals.

What is a linear equation?

A linear equation is in the form:

y = mx + b

Where m is the rate of change and b is the intial value of y.

Let x represents the activity level and y represents the number of meals eaten. Given that:

y = 0.23x + 4.1

For an activity level of 9 (x = 9):

y = 0.23(9) + 4.1 = 6.17

If a cat had an activity level of about 9, then it's likely to have eaten about 6 meals.

 

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Answer:

answer is 6

Step-by-step explanation:

i took the work

What is the area of triangle DEF?



2 StartRoot 2 EndRoot square units


2 StartRoot 14 EndRoot square units


6 StartRoot 22 EndRoot square units


12 StartRoot 77 EndRoot square units



The answer is B

Answers

Answer:

B. [tex]2\sqrt{14}[/tex]

Step-by-step explanation:

Plug it in Heron's formula.

Answer:

2 StartRoot 14 EndRoot square units

Step-by-step explanation: i just did it :)

The surface area of a sphere is 452.15 cm squared. Find the length of the radius and use 3.14 for pie

Answers

Answer:

Step-by-step explanation:

6cm approximately

HELP ILL MARK YOU AS BRAINILIEST

Answers

Answer:

D

Step-by-step explanation:

rise over run!

Answer:

I'm not sure what the answer is. This app is on my mom's phone and it's late. If you have any questions starting Monday I can help you then

637-627(629)=(93+52)-(-6376-x)

Answers

Answer:

uhh maybe 3 1/2 im not sure

Step-by-step explanation:

A square pyramid has a base area of 25 square inches, and a volume of 150 cubic inches. What is the height of the pyramid in inches?

Answers

Answer:

Step-by-step explanation:

Colin rolls a fair dice 18 times.
How many times would Colin expect to roll a number greater than 3?

Answers

Answer:

8 or 1/2

Step-by-step explanation:

The requried probability that colin expects to roll a number greater than 3 is 1/2.

What is probability?

Probability can be defined as the ratio of favorable outcomes to the total number of events.

Here,
Colin rolls a fair die 18 times.
The total outcome of 1 die = 6
So, for 18 die total outcome = 6 × 18

Now,
Favorable outcome = 4, 5, 6 = 3
A total favorable outcome for 18 dice = 3 × 18

Probability, many times would Colin expect to roll a number greater than 3.
= 3 × 18  /  6 × 18
= 1 / 2

Thus, the requried probability that colin expects to roll a number greater than 3 is 1/2.

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Graph the equation h=3sin (pi/2(t+2)+5

Answers

Answer: The answer is in the image below.

find the distance between the two points PICTURE ABOVE

Answers

Answer:

[tex]\sqrt 40[/tex]

Step-by-step explanation:

What is the difference between a minor and major arc of a circle?

Answers

Answer:

Hi there!

Given two points on a circle, the minor arc is the shortest arc linking them. The major arc is the longest.

The minor is the smallest arc and the major is the bigger one


The height of a parallelogram is 6.5 cm.
The base is 13 cm. What is the area of the
parallelogram?

Answers

Area of parallelogram = base × height

Area = 6.5 × 13 = 84.5 cm²

[tex]area = base \times height \\ area = 13cm \times 6.5cm \\ area = 84.5cm {}^{2} [/tex]

Stephanie and Susan were counting the money from their lemonade stand Stephanie sold 4 times more glasses of lemonade than Susan. Together they sold 50 glasses of lemonade. How many glasses of lemonade did each person sell?
steps ?!

Answers

Answer

Stephanie sold 40 glasses while Susan sold 10 glasses

Step-by-step explanation:

Stephanie sold 4 times more glasses than Susan, overall of 50 glasses

Point B has coordinate B(1, –1). What is the coordinate of B' under a scale factor of 3?
1,-1
3,-3
-2,2
-6,6

Answers

Answer:

The coordinate B' is [tex]B' = (3, -3)[/tex].

Step-by-step explanation:

The new coordinate is computed by applying the scale factor with respect to origin:

[tex]B' = \alpha \cdot B[/tex]

[tex]B' = 3\cdot (1,-1)[/tex]

[tex]B' = (3\cdot 1, 3 \cdot (-1))[/tex]

[tex]B' = (3, -3)[/tex]

Answer:

B) 3,-3

Step-by-step explanation:

A). What is the volume of the below triangular prism?
B.) What is the surface area of the below triangular prism?

Solution:​

Answers

The surface area
1/2(8)(3)=12
1/2(8)(3)=12
(8)(12)=96
(8)(12)=96
(8)(12)=96
12+12+96+96+96=312cm

Answer:

The surface area

Step-by-step explanation:

1/2(8)(3)=12

1/2(8)(3)=12

(8)(12)=96

(8)(12)=96

(8)(12)=96

12+12+96+96+96=312cm

What is the circumference and area of a circle with a radius of 4 meters? Round your answer to the nearest tenth.

Answers

Answer:

50.27 for the area

25.13 for the circumference

Step-by-step explanation:

A=πr2=π·42≈50.26548

C=2πr=2·π·4≈25.13274

can y'all help me plz anyone​

Answers

Answer:

y=2x+2

Step-by-step explanation:

2 is the slope and 2 is also the y intercept. So your equation would be y=2x+2. It is correct because 14=2(6)+2 is true.

Which three programs or services are supported by taxes?

fire departments

Medicare

public education

shopping malls

theaters

Answers

Answer: A,B,C

fire department, medicare, public education

Step-by-step explanation: Plato answer

The three programs or services are supported by taxes are fire departments, Medicare and public education

What is Tax?

A tax is a sum of money that people pay to the government for the services provided by the government.

The three programs or services that are supported by taxes are:

Fire departments: Taxes are used to fund fire departments that provide emergency services such as firefighting, rescue, and medical assistance.

Medicare: Taxes are used to fund Medicare, a federal health insurance program for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease.

Public education: Taxes are used to fund public education, including elementary, middle, and high schools, as well as public colleges and universities.

Shopping malls and theaters are not typically supported by taxes.

They are usually privately owned and funded by their owners.

Hence, the three programs or services are supported by taxes are fire departments, Medicare and public education

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What is the first step to solve this equation: 3x =44

Answers

You need to divide 3 on both sides

The correct first step to solve the equation 3x = 44 is to divide both sides by 3.

To solve the equation 3x = 44, the first step is to isolate the variable x on one side of the equation.

To achieve this, you need to undo the multiplication by 3 on the left side of the equation.

Since 3x means 3 multiplied by x, you need to divide both sides of the equation by 3.

By dividing both sides of the equation by 3, you are essentially canceling out the effect of the multiplication by 3 on the left side.

This step allows you to isolate the variable x.

So, the correct first step to solve the equation 3x = 44 is to divide both sides by 3.

Hence the correct option is 4th.

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Tell whether each set of events is independent or dependent (problems 1 - 4).
1. The teacher randomly selects two students from the class.

2. You roll a 3 on a number cube and choose a 3 from a deck of cards.

3. Pick "Joe" from a box of names, replace it, and then pick "Craig".

4. Pick "Joe" from a box of names, set it aside, and then pick "Craig".

Answers

Answer:

1 dependent

234 independent

Step-by-step explanation:

Photo above no work needed just the answer thank you

Answers

Answer:

Step-by-step explanation:

1.1,0,-1,-2,-3,-4

2. The distance is 5 points

Which expression is equivalent to 9 – 8x?
A. -8x – 9
B. -8x + 9
O c. 8x - 9
D. 8x + 9

Answers

Answer:

option B -8x+9

Step-by-step explanation:

If you switch position around, - 8x will go in front and +9 will go at the back

*remember that the signs in front of a number is for the number and number without signs their signs are automatically +

The expression is 9 - 8x is equivalent to the  -8x + 9.

What is expression?

An expression is statement which is "combination of numbers, variables and functions".

According to the question,

The expression is 9 - 8x is equivalent to the -8x + 9.

The signs in front of a number is for the number and number without signs their signs are automatically +.

Hence, the expression is 9 - 8x is equivalent to the -8x + 9.

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Rewrite [tex]\frac{2}{x^{2}-x-12 } and \frac{1}{x^{2}-16 }[/tex] as equivalent rational expressions with the lowest common denominator.
Provide your answer below:
___ , ___

Answers

Answer:

2(x+4)/(x+3)(x-4)(x+4) and 1(x+3)/(x+3)(x-4)(x+4)

Step-by-step explanation:

Factor x^2-x-12: (x+3)(x-4)

Factor x^2-16: (x+4)(x-4)

So, LCD would be (x+3)(x-4)(x+4)

Rewritten: 2(x+4)/(x+3)(x-4)(x+4) and 1(x+3)/(x+3)(x-4)(x+4)

I hope this helped and have a good rest of your day!

Solve for a in the problem:
-3(9a+2)=129

Answers

Answer: a = -5

Step-by-step explanation:

-3 (9a+2)=129

-27a -6 = 129

-27a = 129+6

-27a = 135

a = -135/27

Answer:

a= -5

Step-by-step explanation:

To solve the equation, we want to find out what a is. In order to do this, we have to get a by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.

-3(9a+2)=129

-3 is being multiplied by 9a+2. The opposite of multiplication is division, so divide both sides by -3.

-3(9a+2)/-3=129/-3

9a+2=129/-3

9a+2=-43

2 is being added on to 9a. The opposite of addition is subtraction, so subtract 2 from both sides.

9a+2-2= -43-2

9a= -43-2

9a= -45

a is being multiplied by 9. The opposite of multiplication is division, so divide both sides by 9.

9a/9= -45/9

a= -45/9

a=-5

The triangles shown are
congruent.
What is a correct congruence
statement for the triangles
shown?
HELP ASP PLS I WILL GIVE YOU THE POINTS !!!

Answers

Answer:

MCW

In order to find it you want to make sure the letters go in the exact same order.

Answer:

MCW

Step-by-step explanation:

Sebastian has 50 marbles in a bag. 20% of the marbles are green. How many marbles are green?

Answers

Answer: 10

Step-by-step explanation:

50 divided by 10 is 5

10%=5

20%=10

Answer:

10 marbles are green

Step-by-step explanation:

Let me explain.

Using price×rate= amount

you do 50x20%= 10. This means that out of the 50 marbles

only 10 are green.

omer selects
Mel's Sandwich Shop
Bread
White
Wheat
Sandwich Bun
Pita
Filling
Ham
Roast Beef
Tuna Fish
Turkey
Cheese
American
Provolone
Pepper Jack
No Cheese
Condiments
Ketchup
Mayonnaise
Mustard
No Condiment
Vegetables may be added free of charge at the self-serve veggie station.
Make your lunch sandwich into a combo platter for an additional $1.00!
1. How many different sandwiches can you make from the choices on the menu board?
2. The sandwich shop has several customers that are vegetarians. In place of the fillings
listed on the menu, the sandwich shop uses a vegetable spread on these orders. How
many different vegetarian sandwiches can you make from the choices on the menu
board?
Lunch special: $3.75
Use the menu board to answer the questions.
whes into

Answers

Answer:

3. .75 :) your welcome I did awesome

I need help. It's kinda hard for me. We have to use decimal numbers

Answers

Answer: 2.4 + 7.6 = 10

Step-by-step explanation:

Hope this helps

How many ways can you pick a President, Vice President, Secretary and Treasurer from a group of 12 people?

479,001,600

19,958,400

20,736

11, 880

Answers

Answer: 20,736

Step-by-step explanation:

There are 12 people total in the room, so the base of the exponent will be 12.

Sine there are 4 possible positions, the exponent will be 4.

# of possibilities = 12^4

12^4 = 12 * 12 * 12 *12 = 20,736

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