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
PilotLPTM [1.2K]
3 years ago
14

The volume of a rectangular pyramid is 900 cubic centimeters.It has a length of 10 centimeters and a width of 9 centimeters. Wha

t is its height
Mathematics
1 answer:
MariettaO [177]3 years ago
3 0
The height of a rectangular pyramid is 30 cm.

volume of rectangular pyramid = (length x width x height) / 3

Given: 
Volume = 900 cm³
Length = 10 cm
Width = 9 cm
Height = ?

V = lwh/3
900 cm³ = (10cm * 9cm * h)/3
900 cm³ * 3 = (90cm² * h)/3 * 3
2700 cm³ = 90cm² * h
2700 cm³/90cm² = 90cm² * h/90 cm²
30 cm = h

to check:
900 cm³ = (10 cm * 9 cm * 30 cm)/3
900 cm³ = 2700 cm³/3
900 cm³ = 900 cm³
You might be interested in
Mias dog weighs 32.6 pounds. Letties dog weighs 3.8 times as much as Mias you. What does Letties dog weigh in pounds?
Whitepunk [10]
Hello!

We are given the weight of Mia's dog and told to find the weight of Lettie's dog based on the known relationship. Using these given values, we can create the following equation (let "w" represent the total weight of Lettie's dog):

w = 32.6(3.8)

Simplify the right side of the equation:

w = 123.88

We have now proven that Lettie's dog weighs 123.88 lbs.

I hope this helps!
6 0
3 years ago
Read 2 more answers
Which is smaller-21/35, 7/5​
Paladinen [302]

Answer:

-21/35

Step-by-step explanation:

So, 7/5 is a postive number, since it doesn't have a negative - sign in front of it. On the other hand, -21/35 does. Knowing this, we can conclude that -21/35 is smaller than 7/5.

If you want another way of thinking about it, just guessing, what is 7/5? Well, 7 is bigger than 5, so it must be at least 1. On the other hand, with -21/35, the -21 doesnt look like its bigger than 35, so it must be smaller than 1.

Answer:

<u>-21/35 is smaller than 7/5 </u>

<u></u>

<u>Ti⊂k∫∈s ω∅∅p</u>

3 0
3 years ago
Read 2 more answers
28,062 divided by 3
Galina-37 [17]
28 062 ÷ 3
9 354
9 354 x 3 
28062
3 0
3 years ago
Read 2 more answers
1. Why should you plan for retirement now? Use 2-3 complete sentences
mixer [17]
You can plan retirement now to know what you will do later on and plan on how much money you will collect
4 0
2 years ago
Can someone please help me ASAP (radical functions)
Afina-wow [57]

Answer:

D

Step-by-step explanation:

To find the y- intercept, let x = 0 in the equation

Given

f(x) = - \sqrt{5x+2} - 1, then

f(0) = - \sqrt{5(0)+2} - 1 = - \sqrt{2} - 1 ← y- intercept,

(0, - \sqrt{2} - 1 ) ← coordinates of y- intercept

6 0
3 years ago
Other questions:
  • Tom built a fence around his rectangular shaped pool. The posts are 2 yards apart, there are 4 posts along the width and 8 posts
    7·1 answer
  • ANSWERS plZ plZ plZ plZ plZ plZ
    10·1 answer
  • Miranda purchased two pairs of leggings for $2.99 each a bottle of nail polish for $3.49 and a lipstick for $5.99
    12·2 answers
  • The measures of the angles of triangle RST are in the ratio 2:4:9. What are the measures of the angles ?
    7·1 answer
  • 7 . Sampling distribution of the difference between two means A statistician is interested in the effectiveness of a weight-loss
    6·1 answer
  • If 24 pieces of velcro costs 1.95 how much would 1000 pieces cost
    9·1 answer
  • Is it possible to repeat an experiment, with the same number of trials in each, and get a different experimental probability for
    14·2 answers
  • 5a+5-3a=13 i needed to make it 20 charatcers
    6·2 answers
  • What is a formula for the nth term of the given sequence?<br> 19,23,27...
    15·1 answer
  • What is 3/4 divided by 3 1 /4
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!