Answer:
1.) 471.24
2.) 1231.5
3.) 113.1
Step-by-step explanation: A = pi x r^2 + pi x r x ^2
1.) a = 3.14 x (5)^2 + 3.14 x 5 x ^2
a = 3.14 x 25 + 3.14 x 5 x 25
a = 78.54 + 392.70
a ≈ 471.24
2.) A = 3.14 (7)^2 + 3.14 x (7) x ^2
a = 3.14 x 49 + 3.14 x 7 x 49
a = 153.93 + 1077.57
a ≈ 1231.5
3.) a = 3.14 (3)^2 + 3.14 x 3 x ^2
a = 3.14 x 9 + 3.14 x 3 x 9
a = 28.27 + 84.82
a ≈ 113.1
Length of one edge is 10cm
And the surface area is 600cm2
Answer:
-2x^2+5x+12
Step-by-step explanation:
(4-x)(3+2x)
12-3x+8x-2x^2
12+5x-2x^2
-2x^2+5x+12
Answer:
its 432
Step-by-step explanation:
You multiply the base times the side length then divide by 2. hope this helps
Answer:
-20x³ + 0x² + 15x - 20
Step-by-step explanation:
I would have said it the other way.
"Multiply each term in the top row by -5."
4x³ + 0x - 3x + 4
<u>×(-5</u>) <u>×(-5</u>) <u>×(-5)</u> <u>×(-5)
</u>
-20x³ + 0x² + 15x -20
