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Virty [35]
3 years ago
6

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics
2 answers:
Nady [450]3 years ago
5 0

Answer:

A) 2x³+11x²+8x-16

Step-by-step explanation:

When you multiply s(x) by t(x) you get something like this:

s(x) \times t(x) = (2 {x}^{2}  + 3x - 4) \times (x + 4) \\  = 2 {x}^{3}  + 3 {x}^{2}  - 4x + 8 {x}^{2}  + 12x - 16 \\  = 2 {x}^{3}  + 11 {x}^{2}  + 8x - 16

mars1129 [50]3 years ago
4 0

Answer:  A) 2x³ + 11x² + 8x - 16

<u>Step-by-step explanation:</u>

s(x) · t(x) = (x + 4)(2x² + 3x - 4)

             = x(2x² + 3x - 4) + 4(2x² + 3x - 4)

             =   2x³ + 3x² - 4x  + 8x² + 12x - 16

             =   2x³  + (3x² + 8x²) + (- 4x + 12x) - 16

             =  2x³          + 11x²              + 8x      - 16

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We have been given that the height of a right circular cylinder is 1.5 times the radius of the base. So the height of the cylinder would be 1.5r.

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3 years ago
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