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AysviL [449]
4 years ago
5

What's the answer .........????????????

Mathematics
1 answer:
aliya0001 [1]4 years ago
3 0
Area of a circle= pi*r^2

r^2= 10^2= 100
100*pi is the area of the whole circle. Since it is a semicircle, divide it in half.

100*pi/2= 50*pi

Final answer: 50*pi cm^2
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Which of the following is the correct way to write seventy million as a numeral?
Inessa05 [86]
Which of the following is the correct way to write seventy million as a numeral?

As I see no choices the right way to write seventy million as a numeral is

70,000,000

Hope I helped!
3 0
4 years ago
A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/
PIT_PIT [208]
A=(v-u)/t
We know a=2.5, v=40, u=10, so:
2.5=(40-10)/t
2.5t=40-10
2.5t=30
Divide both sides by 2.5
t=12 It takes 12 seconds for the car to reach 40m/s

To find out how far it went, you do:
d=v+1/2 at^2
d=10+1/2(2.5)(12)^2
d=10+1/2(2.5)(144)
d=10+(1.25)(72)
d=10+90
d=100m

Hope this helps :)
7 0
3 years ago
Which of the following groups cannot represent the side lengths of a triangle.
Rom4ik [11]

Answer:

try B for an answer, hope it helps

7 0
2 years ago
How do i evaluate (7 to the power of 2)to the power of 3)=7 to the power of 5​
kakasveta [241]

Step-by-step explanation:

(7^2)^3=7^5\qquad\bold{FALSE}\\\\\text{because}\\\\7^2=7\cdot7\\\\(7^2)^3=(7\cdot7)^3=(7\cdot7)\cdot(7\cdot7)\cdot(7\cdot7)=\underbrace{7\cdot7\cdot7\cdot7\cdot7\cdot7}_6=7^6\\\\\text{or use}\ (a^n)^m=a^{nm}\\\\(7^2)^3=7^{2\cdot3}=7^6

4 0
3 years ago
Read 2 more answers
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