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marishachu [46]
3 years ago
9

A fish was swimming 2 1/2 feet below the water's surface at 1:00 p.m. Three hours later, the fish was at a depth that is 3 1/4 f

eet below where it was at 1:00 p.m. What rational number represents the position of the fish with respect to the water's surface at 4:00 p.m. ?
Mathematics
1 answer:
salantis [7]3 years ago
7 0

Answer:

-23/4 ft

Step-by-step explanation:

Combine -2 1/2 ft with -3 1/4 ft.  The result will be -5 3/4 ft, or -23/4 ft.

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Find the quotient: (x2−5x+8)÷(x+2)
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Answer:

Quotient = x - 7

Step-by-step explanation:

We are dividing x^2 - 5x +8 by x + 2

x + 2√x^2 - 5x + 8

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Multiplying x by x + 2

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x^2 + 2x

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The answer is

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Suppose that y varies directly as the square of x, and that y=567 when x=9. What is y when x=4
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Answer:

y  = 112

Step-by-step explanation:

If  y varies directly as the square of x

mathematically;

y ∝ x²

y = kx² where 'k' is the constant of proportionality

let u know the value of k for this equation by making k the subject of the formular from y = kx²

divide both sides by x²

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given that  y = 567 x = 9

k = 567/(9)²

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Rotation of 180°

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