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2 years ago

How do i find the area of a semicircle

Mathematics

2 answers:

soldier1979 [14.2K]2 years ago

5 0

Pi times by radius to the second power divided by 2

Alex17521 [72]2 years ago

3 0

Find the area of the circle using A=pi * r^2 and then divide that answer by 2 and that will get you the area of the semicircle.

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Solve the equation. 7(1 – 8x) – 6 = 169

Natalija [7]

Answer:

x=-3

Step-by-step explanation:

rearrange terms

distribute

subtract the numbers

subtract 1 from both sides of the equation

simplify

4 0

2 years ago

Read 2 more answers

The sum of three consecutive integers is 198. What are the integers?

-BARSIC- [3]

Answer:

The sum of three consecutive integers for 198 are 65, 66, and 67

Definition of "INTEGERS"

1. a whole number; a number that is not a fraction.

2. a thing complete in itself.

Step-by-step explanation:

198 = x + x + 1 + x + 2

combine like numbers

198 = 3x + 3

subtract 3 from like numbers (in this case)

198 - 3 = 3x + 3 - 3

195 = 3x

divide by 3

195/3 = 3x/3

65 = x

x + 1 = 65 + 1 ---66

x + 2 = 65 +2 --67

6 0

3 years ago

Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 shirts then how many o

KIM [24]

Answer:

Kristin bought 5 plain shirts and 2 fancy shirts.

Hope this helps!

4 0

2 years ago

Mark ran 875 miles in the track club this year . Mark ran in 52 track meets and ran the same number of miles in each . how many

dmitriy555 [2]

Answer:

16 $\frac{43}{52}$

Step-by-step explanation:

875/52 = 16 $\frac{43}{52}$

8 0

2 years ago

For the equations given below, which statement is true?

allochka39001 [22]

Answer: C. The equations have the same solution because the second equation can be obtained by adding 6 to both sides of the first equation.

Step-by-step explanation:

You know that the first equation is:

$-3x-8=19$

And the second equation is:

$-3x-2=25$

According to the Addition property of equality:

If $a=b$ ; then $a+c=b+c$

Then, you can add 6 to both sides of the first equation to keep it balanced. Then, you get:

$-3x-8=19\\\\-3x-8+(6)=19+(6)$

$-3x-2=25$

Therefore, you can observe that the second equation can be obtained by adding 6 to both sides of the first equation, therefore, the equations have the same solution.

If you want to verify this, you can solve for "x" from both equations:

- First equation:

$-3x-8=19\\\\-3x=19+8\\\\x=\frac{27}{-3}\\\\x=-9$

- Second equation:

$-3x-2=25\\\\-3x=25+2\\\\x=\frac{27}{-3}\\\\x=-9$

5 0

2 years ago