Mathematics High School



The function h=-16 t²+1700 gives an object's height h , in feet, at t seconds.


c. When will the object be 1000 ft above the ground?

Answers

Answer 1

Time cannot be negative in this context, we discard the negative value. Therefore, the object will be 1000 feet above the ground at approximately t = 6.61 seconds.

To find the time when the object will be 1000 feet above the ground, we need to set the height function equal to 1000 and solve for t.

Given: h = -16t² + 1700

Substituting h = 1000, we have:

1000 = -16t² + 1700

Rearranging the equation to isolate t²:

-16t² = 1000 - 1700

-16t² = -700

Dividing both sides by -16:

t² = (-700) / (-16)

t² = 43.75

Taking the square root of both sides:

t = ±√43.75

The square root of 43.75 is approximately 6.61, so we have:

t ≈ ±6.61

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Related Questions

Determine the convergence or divergence of the sequence with the given nth term. if the sequence converges, find its limit. (if the quantity diverges, enter diverges. ) an = 5 n 5 n 8

Answers

The limit of the sequence as n approaches infinity is 1. Since the sequence converges to a specific value (1).

To determine the convergence or divergence of the sequence with the given nth term, let's examine the expression:

an = 5n / (5n + 8)

As n approaches infinity, we can analyze the behavior of the sequence.

First, let's simplify the expression by dividing both the numerator and denominator by n:

an = (5n/n) / [(5n + 8)/n]

= 5 / (5 + 8/n)

As n approaches infinity, the term 8/n approaches zero since n is increasing without bound. Therefore, we have:

an ≈ 5/5

an ≈ 1

Hence, the limit of the sequence as n approaches infinity is 1.

Since the sequence converges to a specific value (1), we can conclude that the sequence converges.

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Suppose Alex found the opposite of the correct product describe an error Alex could have made that resulted in that product

Answers

It's important to double-check the signs and calculations during multiplication to ensure accuracy and avoid such errors.

If Alex found the opposite of the correct product, it means they obtained a negative value instead of the positive value that was expected. This type of error could arise due to various reasons, such as:

Sign error during multiplication, Alex might have made a mistake while multiplying two numbers, incorrectly applying the rules for multiplying positive and negative values.

Input error, Alex might have mistakenly used negative values as inputs when performing the multiplication. This could happen if there was a misinterpretation of the given numbers or if negative signs were overlooked.

Calculation mistake, Alex could have made a calculation error during the multiplication process, such as errors in carrying over digits, using incorrect intermediate results, or incorrectly multiplying specific digits.

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