Answer:
The radius of the cylinder is 7 in
Step-by-step explanation:
To calculate the radius of a cylinder we have to use the following formula:
v = volume = 980π in³
h = height = 20in
π = pi
r = radius
v = (π * r²) * h
we replace with the known values
980π in³ = (π * (r)²) * 20in
980π in³ / 20in = π * (r)²
49 in² = (r)²
√(49 in²) = r
7 in = r
The radius of the cylinder is 7 in
Answer:
Step-by-step explanation:
W = 2L + 3, and:
P = 2W + 2L = 192
Substituting 2L + 3 for W, we get:
P = 2(2L + 3) + 2L = 192, or
4L + 6 + 2L = 192, or:
6L = 186
L = 186/6 = 31
The length is 31, the width is 62 + 3, or 65
Therefore, the perimeter P is P = 2(31) + 2(65) = 130 + 62 = 192 (OK!)
Answer:
The expression
1
÷
1/4
is given. Give a real-life application to explain this expression and then simplify it.
Given a life expression to solve this, when one divide 100 pieces of pencil by 25 which is 1/4 of the entire pencil.
1/1/4=1 x 4/1
=4
Step-by-step explanation:
divide 1 by 1 over 4, then using cross multiply
then we have 1 multiply 4 divided by 1
4 is the final answer
Divide fractions by multiplying the first number by the reciprocal of the second.
2ay*15y= 30ay^2
5y^3*4a=20ay^3
(30ay^2)/(20ay^3)=3/(2y)
Final answer: 3/(2y)
Answer:
60º
Step-by-step explanation:
A triangle is 180º so you do (180-60)/2 and you get that x=60.
Hope that helps :)
