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Zigmanuir [339]
3 years ago
14

-8(2x) + 5(2x - 12) + -2(5y - 2) + (-3) (3y)

Mathematics
2 answers:
zvonat [6]3 years ago
8 0

Answer:

−6x−19y−56

Step-by-step explanation:

−8(2x)+5(2x−12)+−2(5y−2)+(−3)(3y)

Multiply −8 and 2 to get −16. Multiply −3 and 3 to get −9.

−16x+5(2x−12)−2(5y−2)−9y

Use the distributive property to multiply 5 by 2x−12.

−16x+10x−60−2(5y−2)−9y

Combine −16x and 10x to get −6x.

−6x−60−2(5y−2)−9y

Use the distributive property to multiply −2 by 5y−2.

−6x−60−10y+4−9y

Add −60 and 4 to get −56.

−6x−56−10y−9y

Combine −10y and −9y to get −19y.

−6x−56−19y

KonstantinChe [14]3 years ago
6 0

Answer:

  • -6x - 19y - 56

Step-by-step explanation:

<u>Simplify</u>:

  • -8(2x) + 5(2x - 12) + -2(5y - 2) + (-3) (3y) =
  • -16x + 10x - 60 - 10y + 4 - 9y =
  • x(-16 + 10) + y(-10 - 9) + (-60 + 4) =
  • x(-6) + y(-19) + (-56) =
  • -6x - 19y - 56
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Answer:

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Step-by-step explanation:

A graphing calculator answers these questions easily.

The ball achieves a maximum height of 40 ft, 1 second after it is thrown.

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The equation is usefully put into vertex form, as the vertex is the answer to the questions asked.

  h(t) = -16(t^2 -2t) +24

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Compare this to the vertex form:

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We see the vertex of our height equation is ...

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Step-by-step explanation:

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Now, all you would need to do is simplify the answer.
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The answer would be, Suzy can drive 1 \frac{3}{5} or 1.6 miles in 1 hour. 

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