Answer:
perimeter is 12x-6
Step-by-step explanation:
perimeter is the sum of all sides
3(x+2) + 2x+11 + 7x-23
distribute the 3 in the first term, then combine 'like terms'
3x+6 + 2x+11 + 7x-23
3x+2x+7x + 6+11+(-23)
12x-6
Answer:
A. 1206 cm³
Step-by-step explanation:
We have a cone and are asked to find the approximate volume of it.
Keep in mind we are using π for 3.14
The forumla of a cone is V = πr²
We know the radius = 12
and the height = 8
Substitute :
V = π12²
Since these are multiplied with each other, we can first start off with multiplying the fraction, including with factoring 12²:
V =
Cancel the common factor - 3 :
V =
Multiply 8 and 3π :
V =
Solve the exponent :
V =
Multiply :
V =
Multiply for the final answer :
1205.76 cm³
which can be rounded up to
A. 1206 cm³
The correct answer is C. They are going down by 3.
Only figure C is a regular polygon since it has all sides congruent and all angles congruent.