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
Pavel [41]
2 years ago
14

A cube has an edge length of 21 cm. What is the volume?

Mathematics
2 answers:
77julia77 [94]2 years ago
7 0

Answer:

3x21 cm3

Step-by-step explanation:

JulijaS [17]2 years ago
5 0

Answer:

Step-by-step explanation:

Volume = 21^3 cm^3.

You might be interested in
Phones-R-Us charges $16.95 per month and $0.05 per text message. Awesome Wireless charges $22.95 per
Dima020 [189]

Answer:

S \leq 200

Step-by-step explanation:

Given

Phone R-Us= $16.95 + $0.05 per SMS

Awesome Wireless = $22.95 + $0.02 per SMS

Required

Determine the number of SMS such that Awesome Wireless is greater or equal to Phone R-Us

Represent the SMS with S

For Phone R-Us, we have:

SMS = 16.95 + 0.05S

For Awesome Wireless, we have:

SMS = 22.95 + 0.02S

For Awesome Wireless is greater or equal to Phone R-Us, we have:

22.95 + 0.02S \geq 16.95 + 0.05S

Collect Like Terms

0.02S - 0.05S \geq 16.95 - 22.95

-0.03S \geq -6

Solve for S

\frac{-0.03S}{-0.03} \geq \frac{-6}{-0.03}

S \leq 200

<em>Hence: for Awesome Wireless to cost more or equal to Phone R-Us, the number of SMS must not exceed 200</em>

4 0
3 years ago
Hannah received $30 for her birthday and bought 3 shirts that were all the same price. If she had $9 left over, which equation s
Natasha2012 [34]
Money spent + money left over = total money

money spent + 9 = 30

We don't know the price of each shirt, so let x = price of 1 shirt.
Then, 3 shirts cost 3 times as much as x, or 3x.
She spent 3x.

3x + 9 = 30
5 0
3 years ago
Read 2 more answers
What if there is more than one variable?
Nadya [2.5K]

Answer:

a10 b10

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
How do yo slove the problem
maksim [4K]
4) In triangle, angle opposite to perpendicular is 90-60 = 30
So, tan Ф = P/B
tan 30 = a / 6
1/√3 = a/6
a = 6/√3
a = 2√3

Now, cosФ = B/H
cos 30 = 6/b
√3/2 = 6/b
b = 6*2/√3
b = 12/√3
b = 4√3

In short, Your Answer would be a = 2√3 and b = 4√3

Hope this helps!
6 0
3 years ago
Read 2 more answers
Can you divide 3 by 8? Explain your response.
Margaret [11]

Answer:

Yes

Step-by-step explanation:

You can divide anything.

7 0
2 years ago
Other questions:
  • Which expression has the same value as the one below?
    7·2 answers
  • The meeting had 30 people, which is five-sixths of the club. How many people are in the club?
    8·2 answers
  • X plus 4 over 3 = -2
    14·1 answer
  • What is the value of x in the following system Y=3x-5 and 6x+3y=15
    15·1 answer
  • Suppose that extra fingers and toes are caused by a recessive trait, but it appears in only 60% of homozygous recessive individu
    14·1 answer
  • Evaluate (4p)3 when p = (-1)
    8·1 answer
  • Im not to sure how to do this :,D
    5·1 answer
  • Alejandra solved a math problem by doing the steps below in the order shown.
    7·1 answer
  • How do i solve this?<br> I dont understand what the big number is to the small number
    10·1 answer
  • Please help work this equation
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!