The two cones are similar. The smaller cone has a surface area of 11.74 inches2. Complete the last step to determine the surface area of the larger cone. The scale factor of the larger to the smaller is , or . The surface area will change by the square of the scale factor, which is , or . Let the surface area of the larger cone be x. Then, the proportion is = . Solve for x and round to the nearest hundredth. The surface area of the larger cone is about inches2.

32.61  inches2

edg2020

Step-by-step explanation:

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!