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zaharov [31]
3 years ago
11

The function f(x) = −16x2 + 112 models the height, in feet, of an

Mathematics
1 answer:
natima [27]3 years ago
3 0

For this, just plug in 1.5 into the x variable of this function and solve as such:

f(1.5)=-16*1.5^2+112\\f(1.5)=-16*2.25+112\\f(1.5)=-36+112\\f(1.5)=76

<u>The height of the object was at 76 ft.</u>

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Process:

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This is because 8^2 = 64, and -8^2 = 64, and the inequality requires the answer to be more than 64.

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Now, B. also has an alternative. The 'or' is a major clue to which is the correct answer, since the square root of any number can be positive or negative. (-8^2 = 8^2)

The 'or' states that x must be greater than 8. So, for example, if we take the square of 10, we get 100, and that is also greater than 64.

We've proven that this solution is accurate for both parts, so it is definitely the one we want!

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