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3 years ago

Brad knows the answer to 5 multiplied by 7 how does this help him solve the answer to 8 multiplied by 7?

Mathematics

1 answer:

dimaraw [331]3 years ago

6 0

Answer:

Breaking up the multiplicand 8 into (5+3) allows us to apply the associative property of multiplication. See below.

Step-by-step explanation:

5*7 = 35. We want the product 8*7. Note that 8 = 5+3. Thus, 8*7=(5+3)(7) = 35 + 21, or 56.

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Solution:

Given data:

$H_0=288$ feet

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$$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

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$$t=\frac{-48\pm \sqrt{48^2-4(-16)(288)}}{2(-16)}$

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Now, write find two t's using plus and minus operation.

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$$t=\frac{96}{-32},\ \ t=\frac{-192}{-32}$

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