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SIZIF [17.4K]
3 years ago
6

a math student is standing 40 feet from the base of a water tower. the angle of elevation from her horizontal line of sight is 7

2 degrees. If her "eye height" is 5 feet, how tall is the water tower? Round to the nearest foot.​
Mathematics
1 answer:
Lerok [7]3 years ago
4 0

9514 1404 393

Answer:

  128 ft

Step-by-step explanation:

The height of the tower above eye-height is related to the angle by ...

  Tan = Opposite/Adjacent

  tan(72°) = (tower height above eye height)/(40 ft)

  tower height above eye height = (40 ft)×tan(72°) = 123 ft

Since eye height is 5 ft, the total height of the tower from the ground is ...

  tower height = eye height + height above eye height

  tower height = 5 ft + 123 ft

  tower height = 128 ft

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Step-by-step explanation:

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3 years ago
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ioda

Given:

The polynomial is:

3x^4-5x+7

To find:

The degrees and determine whether it is a monomial, binomial, or trinomial.

Solution:

We have,

3x^4-5x+7

The highest power of the variable <em>x</em> in the given polynomial is 4. So, the degree of the polynomial is 4.

Monomial: Polynomial with one term.

Binomial: Polynomial with two terms.

Trinomial: Polynomial with three terms.

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3 years ago
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Step-by-step explanation:

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3 years ago
To buy a car, you borrow $25,000 with a term of three years at an APR of 6.5%. What is your monthly
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Answer:

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Step-by-step explanation:

The amortization formula is appropriate for this. (Better, use a financial calculator or spreadsheet.)

  A = P(r/12)/(1 -(1 +r/12)^-(12t))

where P is the amount borrowed (25,000), r is the annual rate (0.065), and t is the number of years (3).

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The monthly payment is $766.23.

_____

<em>Comment on tools</em>

A graphing or scientific calculator is useful for these. Something like a TI-84, or any of the equivalents, will have financial calculations like this built in. There are also numerous apps available for phone or tablet that will do financial calculations.

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3 years ago
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aivan3 [116]

Answer:

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Step-by-step explanation:

14h + 12 - 8h - 3

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22h + 12 - 3

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