Area=pi times radius^2
area=36pi
36pi=pi times radius^2
divide both sides by pi
36=radius^2
square root both sides
6=radius
2radius=diameter
2 times 6=12
radius=6
diamater=12
the answers area A and D
(if you know your radius and diameter, you would know that diameter is 2 times radius and you could eliminate 2 choices imedietly (B and C))
For triangles Sum of any Two sides should be always more than the length of the Third side.
A) 2cm,8cm,8cm
8+8=16 >2 True
8+2=10 >8, True
8+2=10 >8, True
B) 2cm,3cm,6cm
2+3=5 > 6 False. It is impossible in a triangle.
3+6=9 > 2 True
2+6=8 >3 True
The answer is B.
5! = 5 *4*3*2*1 = 120
2! = 2*1 = 2
120 +2 = 122
Answer:
426+17m=s
Step-by-step explanation:
You are multiplying 17 by an amount of months (m) then adding 426 dollars to that because it is the amount of money you started with. s means the total savings which is what you'll get by solving the equation once you know how many months you've been saving.
Answer:
k = 42
Step-by-step explanation:
This is a complementary angle, meaning that the angles formed equal 90 degrees. We know it is complementary because the angle is shown was a tiny square, a sign that it is 90 degrees. Thus, the two angles (k+1) and 47 added together must equal 90. So, we can write an equation:
(k+1) + 47 = 90
k + 1 = 43
k = 42.