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
fomenos
3 years ago
8

If one side of a square notebook measures 20 cm, what is the area of the front cover of the notebook?

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

400 cm squared

Step-by-step explanation:

Since a square has all equal sides, this would mean the the all the other sides are 20 as well. To get the area, you would just multiply 20 by 20 to get 400. :)

Murrr4er [49]3 years ago
3 0

Answer:

D. 400 centimeters squared

Step-by-step explanation:

You might be interested in
What is the unit rate of this question
kykrilka [37]
Answer: 64 mph

We can see that after every hour, the car has traveled 64 miles. So the speed rate is 64 miles per hour.
8 0
3 years ago
Read 2 more answers
Find the area of a circle if the circle is 5 m long
SpyIntel [72]

Answer:

A≈78.54

Step-by-step explanation:

A=πr2

I think this is right

6 0
3 years ago
A triangle has sides with lengths of 8 inches, 15 inches, and 17 inches. Is it a right triangle?
In-s [12.5K]

Answer:

Yes

Step-by-step explanation:

A square plus b square equal c square

3 0
3 years ago
Read 2 more answers
What's the operation for 2(t+1)=10
fiasKO [112]
The answer is t=4 hope it right
3 0
3 years ago
If you know trig please help! Will give brainliest!
kaheart [24]

Answer:

sin^2α

Step-by-step explanation:

I will just  pose  x instead  of alpha  here to make things simpler

\tan ^2\left(x\right)\left(2\cos ^2\left(x\right)+\sin ^2\left(x\right)-1\right)\\\\

we know that sin^2x = 1 -  cos^2x so...

=\left(-1+1-\cos ^2\left(x\right)+2\cos ^2\left(x\right)\right)\tan ^2\left(x\right)

=\cos ^2\left(x\right)\tan ^2\left(x\right)

we can rewrite using trigonometric identities (tan = sin/cos)...

=\left(\frac{\sin \left(x\right)}{\cos \left(x\right)}\right)^2\cos ^2\left(x\right)\\= \sin ^2\left(x\right)

6 0
2 years ago
Other questions:
  • (4,7), (x,19); slope = 3 the pair points lies on the same line with the given slope. Find x
    12·1 answer
  • Monique made several batches of soup for a potluck supper. Each batch required 3\4 0f a pound of potatoes, and she used a total
    6·1 answer
  • W = 3x + 7y solve for y
    10·1 answer
  • Consider the line: y= -7/2x-7 find the equation of the line that is perpendicular and parallel to this line that passes through
    12·1 answer
  • What is the equation of this graphed line? (0,7) (8,-2)
    15·2 answers
  • The population of a city decreases by 3.5% per year . If this year´s population is 195,000 what will next year´s population be ,
    15·2 answers
  • Witch variable represents the y intercept
    6·1 answer
  • (4x-1)2=11 <br> whats the solution
    12·1 answer
  • What is 2+2 answer in simplest form XD
    7·2 answers
  • Please simplify this it would help a lot
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!