Answer:
area= 78.5 cm²
circumference= 31.4 cm
Step-by-step explanation:

Given that the radius is 5cm, r= 5. Substitute r= 5 and π as 3.14 into the equation:
Area of circle
= 3.14(5²)
= 78.5 cm²

Circumference of circle
= 2(3.14)(5)
= 31.4 cm
For another question on area of circle, you might want to check out this question here: brainly.com/question/14068861
Decrease = New number - Original Number
% Decrease =

× 100
Decrease = 9 - 12 = -3
% Decrease =

= -0.25 × 100 = -25
Your answer =
-25
Hey there,
Question : <span>Determine the miles traveled in 5 hours at a rate of 189 miles in 3 hours
Answer :
3 hours = 189 miles
1 hour = 189 miles / 3 hours
= 63 miles
5 hours = 63 miles x 5 hours
= 315 miles
Hope this helps :))
<em>~Top♥</em>
</span>
Answer:
explanations: we multiply with a rational surd
(x-9)*√(x+9)/(√(x-9)*√(x+9)
=(x-9)√(x+9)/

B.( x-9)/√x+3 =( x-9)*(√x-3)/(√x+3)*(√x-3)
= (x-9)*(√x-3)/x-9
=√x-3
In factorizing its 36 my dude. Im sure just took the test