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
Which term of the AP. 8 , -4 , -16 , -28 ,......... is -880 ?​
denis-greek [22]

Answer:

75th term

Step-by-step explanation:

hope it is well understood

6 0
3 years ago
Read 2 more answers
9 is 9% of what number?
hjlf

Answer:

are you sure this is high school level stuff? its 9% of 100

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Engineers must design a process for producing ammonia in amounts large enough to ensure a reasonable profit. Which criterion wou
ki77a [65]

The process needs to meet the following criterion:The process must make large amounts of product at a low cost. That is option A.

<h3>What is ammonia?</h3>

Ammonia is defined as a gas compound that is made up of nitrogen and oxygen in the ratio of 1:3 respectively.

The industrial and modern method constructed by Engineers for ammonia production is called steam reforming.

The natural resources used for industrial production of ammonia can be gotten from natural gas such as methane.

To make profit, natural products are used which costs less to acquire but will lead to the production of large ammonia quantity.

Learn more about ammonia here:

brainly.com/question/14445062

#SPJ1

5 0
2 years ago
hala paid $1,202.17 for the carpet in her living room. The room has an area of 251.5 square feet. what was her unit cost of carp
iris [78.8K]

Answer:

4.78

Step-by-step explanation:

1202.17/251.5 = 4.78

4.78 per unit

7 0
2 years ago
Read 2 more answers
A man starts at a point A and walks 18 feet north. He then turns and walks due east at 18 feet per second. If a searchlight plac
34kurt

Answer:

1/10 per sec

Step-by-step explanation:

When he's walked x feet in the eastward direction, the angle Θ that the search light makes has tangent

tanΘ = x/18

Taking the derivative with respect to time

sec²Θ dΘ/dt = 1/18 dx/dt.

He's walking at a rate of 18 ft/sec, so dx/dt = 18.

After 3seconds,

Speed = distance/time

18ft/sec =distance/3secs

x = 18 ft/sec (3 sec)

= 54ft. At this moment

tanΘ = 54/18

= 3

sec²Θ = 1 + tan²Θ

1 + 3² = 1+9

= 10

So at this moment

10 dΘ/dt = (1/18ft) 18 ft/sec = 1

10dΘ/dt = 1

dΘ/dt = 1/10 per sec

8 0
3 years ago
Other questions:
  • Which expression has a positive value?<br> (-5)(-9)<br> 2-4<br> 12-1-4)<br> -3+(-7)
    7·2 answers
  • Burj al Arab hotel another one of the world's tallest buildings Built in 1973, it is 1,136 feet high and has 80 stories. If each
    5·1 answer
  • One of the legs of a right triangle has a length of 13 and the hypotenuse has a length
    13·1 answer
  • PLEASE HELP NEED ANSWERS SOON!
    8·2 answers
  • URGENT PLEASE HELP‼️‼️
    8·1 answer
  • The sum of the two areas of two circles is the 80x square meters. Find the length of a radius of each circle of them is twice as
    8·1 answer
  • X= b- cd for c please solve and show work
    10·1 answer
  • Y = –3x – 5 help I don’t know the answer
    10·1 answer
  • Determine whether the equation has no solution, one solution, or infinitely many solutions.
    14·1 answer
  • Select the table that represents the ordered pairs that are plotted in the coordinate plane.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!