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
lilavasa [31]
3 years ago
13

I need help with this problem. How do I do it?

Mathematics
1 answer:
Anna11 [10]3 years ago
8 0

Answer:

20

Step-by-step explanation:

For the area of a rectangle we use A = L* W

We know area or A = 420

and we know length or L = 21

Now we need to find the width or W

(420) = (21) * W

Divide both sides of the equation by 21 to isolate the variable.

That leaves us with:

W = 20

You might be interested in
(PLEASE HELP!!) Use the following diagram to answer the questions.
monitta

Answer:

x:

5x - 29 = 3x+ 19

2x = 48

x = 24°

Angle 1:

180 - (3x+7) = 180 - 79 = 101°

Angle 2:

3x + 7 = 79°

Angle 3:

Same as Angle 1 = 101°

Angle 4:

Same as Angle 1 = 101°

Angle 5:

Same as Angle 2 = 79°

Angle 6:

Same as Angle 5 = 79°

Angle 7:

180 - (5x - 29) = 180 - 91 = 89°

Angle 8:

Same as Angle 7 = 89°

Angles 2 and 3 are Supplementary angles

5 0
3 years ago
WILL MAKE BRAINLIEST
Tasya [4]
If Hannah gives her younger sister 3 shirts, it does not matter what order she hands them to her. No matter the order, it will still be the same group of 3 shirt. Since order is not important this problem can be solved using a combination. 
Specifically, we are asked to find 8C3 (sometimes called "8 choose 3"). This is a fraction. In the numerator, we start with 8 and count down 3 numbers. In the denominator, we start with 3 and count all the way down to 1.
your answer is 56


3 0
3 years ago
9000 for 5 years at 4.5% compounded monthly
tatuchka [14]
I think its 9000(1.045)^5. Hope this helps. That equals $11,215.60, or rounded to the nearest dollar, $11,215.
7 0
2 years ago
Goto ----> cash.gg to redeem your robux PRIZE!!!!
Musya8 [376]

Answer:

please do not give this irrivilant question

5 0
3 years ago
Read 2 more answers
Let A and B be nxn matrices such that AB is singular prove that either A or Bis singular
Alex_Xolod [135]
\det(\mathbf{AB})=\det\mathbf A\times\det\mathbf B

Because \mathbf{AB} is singular, we have

\det(\mathbf{AB})=0

from which it follows that either \det\mathbf A=0 or \det\mathbf B=0.
4 0
2 years ago
Other questions:
  • PLEASE HELP
    15·1 answer
  • ida goes to the store to buy groceries. To pay for the groceries, she slides the card through a card reader and puts in a specia
    7·2 answers
  • What does the letter p in the symbol 4p3 indicates?
    14·1 answer
  • The weight of strawberries follows a normal distribution with a mean weight of 12 grams and a standard deviation of 2.5 grams. I
    13·1 answer
  • 1. State if each scenario involves a permutation or a combination. Then find the number of possibilities:(a) Castel and Joe are
    7·1 answer
  • If f(x) =2x^2 + 5 and g(x) = x^2 - 2 find (f-g) (x)
    9·1 answer
  • Which of the following is a factor of 12 X squared minus 4X minus one
    14·2 answers
  • Jordan got new money bank
    8·2 answers
  • F(u) = u − 1<br> u + 1<br> and g(u) = u + 1<br> 1 − u
    12·1 answer
  • Hi I need help plssssssss
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!