3 years ago

Write down the degrees of the following polynomials: -3x^3-x5

Mathematics

1 answer:

vodomira [7]3 years ago

6 0

5 because you always look for the highest exponent!!

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What is the difference of the rational expressions below?<br> X+5/x^2-2/5x

Leviafan [203]

Answer:

$\large\boxed{\dfrac{x+5}{x^2}-\dfrac{2}{5x}=\dfrac{3x+25}{5x^2}}$

Step-by-step explanation:

$\dfrac{x+5}{x^2}-\dfrac{2}{5x}=\dfrac{5(x+5)}{5x^2}-\dfrac{2x}{5x^2}\qquad\text{use the distributive property}\\\\=\dfrac{5x+25}{5x^2}-\dfrac{2x}{5x^2}=\dfrac{5x+25-2x}{5x^2}=\dfrac{3x+25}{5x^2}$

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3 years ago

tennis ball is hit through the air. The height h of the ball in feet after the distance d in feet the ball travels horizontally

alexira [117]

Answer:

23.0121 feet

Step-by-step explanation:

h = 0, solve for d

0=-0.03d^2+0.56d+3

d = -4.3455 d = 23.0121

d = 23.0121 because distance cannot be negative

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3 years ago

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lisov135 [29]

It might be 3/4, 6/5, 9/6, 12/7, 15/8

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3 years ago

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olya-2409 [2.1K]

The answer is 0.071.
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A pole 24 feet high has a shadow 8 feet long.a nearby pole is 72 feet high. how long is it's shadow?

Dmitry [639]

The answer is 24. If you cross multiply witht he eight over top of the twenty-four, and the x (unknown length of shadow) over seventy-two and cross multiply (8 times 72, x times 24) then get 576 = 24x and divide twenty four on both sides, then that should give you the correct answer.

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3 years ago