1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ahrayia [7]
3 years ago
15

This is a cross section of the design of a bookshelf.

Mathematics
1 answer:
Elanso [62]3 years ago
6 0

Answer:

25 in

Step-by-step explanation:

a^{2} +b^{2} =c^{2} \\15^{2} +20^{2} =c^{2} \\225+400=c^{2} \\c^{2} =625\\c=\sqrt{625} \\c=25

You might be interested in
A homeowner is building a circular fire pit in his backyard. He plans to outline the pit with bricks and cover the space inside
mash [69]

Answer:

------------feet--------

9.428571429 feet

9.4 feet

-----------------area--------

7.071428571 ft^2

7 ft^2

Step-by-step explanation:

tell me if i got it right

braniest?

4 0
3 years ago
Sarah kicked a ball in the air. The function
Aleksandr-060686 [28]

Answer: The ball hits the ground at 5 s

Step-by-step explanation:

The question seems incomplete and there is not enough data. However, we can work with the following function to understand this problem:

f=30 t- 6t^{2} (1)

Where f models the height of the ball in meters and t the time.

Now, let's find the time t when the ball Sara kicked hits the ground (this is when f=0 m):

0=30 t- 6t^{2} (2)

Rearranging the equation:

6t^{2}-30 t=0 (3)

Dividing both sides of the equation by 6:

t^{2}-5 t=0 (4)

This quadratic equation can be written in the form at^{2}+bt+c=0, and can be solved with the following formula:  

t=\frac{-b \pm \sqrt{b^{2}-4ac}}{2a} (5)  

Where:  

a=1  

b=-5  

c=0  

Substituting the known values:  

t=\frac{-(-5) \pm \sqrt{(-5)^{2}-4(1)(0)}}{2(1)} (6)  

Solving we have the following result:

t=5 s  This means the ball hit the ground 5 seconds after it was kicked by Sara.

6 0
3 years ago
The length of the flower garden is 3 times as great as the width. What are the dimensions? The area is 48 sq m
Rudiy27
The correct answer is 144
8 0
3 years ago
Round 14102.60942 to 3sf
Ronch [10]

Answer:

14100

Step-by-step explanation:

8 0
3 years ago
What is the range of this data set? {14, 25, 61, 18, 30, 32, 28, 45, 21} 47 28 7 I don't know.
kati45 [8]

The range of the dataset = 47

What is the range of a dataset?

The range of a set of data is the difference between the greatest number and least number

The given data set is:

{14, 25, 61, 18, 30, 32, 28, 45, 21}

The greatest number = 61

The least number = 14

The range of the dataset = Greatest Number - Least Number

The range of the dataset = 61  -  14

The range of the dataset = 47

Learn more on range of a distribution here: brainly.com/question/4679134

3 0
2 years ago
Read 2 more answers
Other questions:
  • Ivan has 4 hours of music on his mp3 player. Jazz makes up ¹/6 of the total time. how many hours of jazz are on Ivan's mp3 playe
    11·1 answer
  • Name the intersection of plane R and line JL
    10·1 answer
  • What is the approximate distance between points A and B?
    7·2 answers
  • Which problems are best solved using scatter plots and their trend lines?
    11·1 answer
  • I need help please . <br> What does y=?
    7·1 answer
  • Someone friend me please
    7·2 answers
  • I need the answer plzzz I really need it plzz help me
    8·2 answers
  • Identify the property that is illustrated by the equation.
    11·1 answer
  • 1. If a road rises to a height of 5 m in a
    5·1 answer
  • What are the exact values of x and y?<br><br> x = <br> y =
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!