Answer:
none
Step-by-step explanation:
any value on y cancel 4y and then we will have -12=12 which is not true.
Answer:
81
Step-by-step explanation:
let the terms be a,ar,ar²
r=2/3
a+a(2/3)+a(2/3)²=171
multiply by 9
9a+6a+4a=171×9
19 a=171×9
a=(171×9)/(19)
a=9×9=81
Answer:
The height of the triangle is
cm.
Step-by-step explanation:
----------------------------------------
The formula for solving the area of a triangle is
where
stands for base and
stands for height.
Let's substitute 30
for the area and 10 for the base.

-------------------->>>>
Now, let's solve to find the height.

Multiply
times 

Divide both sides by 5.

-----------------------------------------
Hope this is helpful.
Answer:
A cylinder with a base radius of 7cm and a height of 12 cm.
Answer:
the answers are : A , B , and E. i just took the assignment.
Step-by-step explanation: