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
Butoxors [25]
3 years ago
12

A B C D and F are questions about the picture please help!!

Mathematics
2 answers:
kondaur [170]3 years ago
7 0
A) 10 x 10 = 100
B) pi x radius squared
C) the radius is half of the diameter(10) so
pi x 5 squared
pi x 25 = 78.5
D) 100 - 78.5 = 21.5
E) (im pretty sure) pi x diameter
F) pi x 10 = 31.4

(I’ve rounded everything to 2 decimal places)
Hope this helps x
Lyrx [107]3 years ago
5 0
I'm going to separate this into sections so it makes more sense for you to read. For the problems with π where you have to round, ask your teacher where to round, unless your textbook specifies it:

A – 100 cm^2

To calculate area of squares, you multiply l • w. It's a square, so all sides are equal, and since we know that one side = 10 cm, the area is 10 • 10 = 100

B – πr^2         (not sure if the r shows up very well, so I'm retyping it in words - pi • radius squared)

C – 25π cm^2 or an approximate round like 78.54 cm^2 (ask your teacher about this – it could be to the nearest tenth, hundredth, etc.)

To find the area of a circle, you must follow the formula πr^2. In this case, the diameter is 10. The radius is half the diameter, so to substitute the values you must find 10 ÷ 2 = 5. So the radius is 5 cm. From there you can substitute r for 5, ending up with π • 5^2.    5^2 = 25, so the area is 25π, or about 78.54, depending on where the question wants you to round.

D – An approximate round (to the nearest hundredth it is 21.46 cm^2)

To find the area of the shaded region, just subtract the circle's area from the square's area, or 100 – 25π ≈ 21.46. Again, though, ask your teacher about where to round, unless your textbook specifies it.

E – dπ      (diameter • pi)

F – 10π cm^2 or an approximate round like 31.42 cm^2

The diameter is 10. 10π ≈ 31.42

Hope this helps!
You might be interested in
Solve each equation algebraically using if–then statements to justify each step <br><br>2(x + 4) = 8
Alex
This is what Photomath got

8 0
3 years ago
Solve x3 – 25<br> Please HELP
Iteru [2.4K]
There is no solution it’s in final form
8 0
3 years ago
Read 2 more answers
A store is selling 5 types of hard candies: cherry, strawberry, orange, lemon and pineapple. how many ways are there to choose:
swat32
Is this a probability question?
7 0
3 years ago
The product of g and 4 is 88<br> x= ?
Evgesh-ka [11]

Answer:

x = 22

Step-by-step explanation:

22 x 4 = 88

4 0
3 years ago
1. Choose the correct symbol to compare. 8/10<br> 3/4<br> &lt;<br> &gt;<br> =
oksano4ka [1.4K]

Answer:

I think 8/10 is greater?

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the following proble<br> 1. 3a + 1 = a +9
    13·1 answer
  • To pass a course with a C grade, a student must have an average of 70 or greater. A student's grades on three tests are 69, 77 a
    12·2 answers
  • What graph represents the inequality y≥2−2x?
    10·2 answers
  • Solve: y= 7/3x-3 and y=11
    7·2 answers
  • I need help. I will give you 10 points.​
    8·1 answer
  • Need help on my homework it includes estimating
    8·1 answer
  • Given r=2, s=5, t=8; what is 12s - 2rt + 101?
    8·1 answer
  • Please help !!!!!!!!
    14·2 answers
  • Please help me on this problem! ​
    9·2 answers
  • Find the missing measures in this regular hexagon. a regular hexagon has side lengths of 16 inches. the radius is 16 inches. an
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!