Answer:
The radius of the cylinder is 
Step-by-step explanation:
we know that
The volume of the cylinder is equal to

we have


assume

substitute the values and solve for r




Answer:
C= 6.28 A: 3.14
Step-by-step explanation:
Circumference of a circle is 2* pi * r
Based on this, we can subsitute r for 1
2* pi * 1= 2pi which is around 6.28 units
Area of a circle is pi* r* r
Based on this, we can subsitute r for 1
pi* 1* 1= pi= 3.14 units squared
Answer:
y = 1/2
x = -3/2
Step-by-step explanation:
y = 3x+5
Substance instances of y in the equation.
x + 3x +5 = -1
4x=-6
x= -6/4
y = 1/2
Answer:
x=8
Step-by-step explanation:
a
x+2=7x-3
x+7x=3-2
8×= 1
×=8
b
13y+25=8y+5
13y+8y= 25+5
21y=30
y= 30-21
y=11