Answer:
Option A and Option C
Step-by-step explanation:
The surface area of a cone can be calculated with this formula:
(This matches with the option A)
Where 
is the lateral area of the cone (Being "s" the slant height) and 
is the area of the base of the cone (which is a circle).
You know that BA the is the area of the base and LA the lateral area of the cone.
Then, substituting into the formula for calculate the surface area of a cone, you get:
This matches with the option C
Answer:
Proven
Step-by-step explanation:
We prove the polynomial with factorization. We must first simplify the expression before we can factorize:
4 is the common number and we can take it out of the expression:
We can factorize further with the x term being zero. For this to be true we must have -2x and 2x to cancel out and therefore the expression is proven:
Answer:
1. (-20/3)+[(2×3+2)/3]=-12/3=4
2. (-5/3)-(2/3)-3= -5-2-6=-3
38 inches because 40-5 is 35 so each sid would be enlarged by 35 inches so it is an enlarged ratio. Therefore, you would add 3 inches by 35 inches to get the width which is 38 inches.
Answer:
7 points
Step-by-step explanation:
started out w/ 5 points, then loses 8
5 - 8 = -3
gains 10 points
-3 + 10 = 7
