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2 years ago

15

2. Write an expression for the phrase, "The sum of 15 and twice a number.

1 answer:

Crank2 years ago

6 0

Answer:

2x + 15

Step-by-step explanation:

Twice of a number is just the number times 2; so, if x is a number, then twice x is 2x. The sum of 15 and a number is just the number plus 15; so, the final expression will be 2x + 15.

Hope this helps :)

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Step-by-step explanation:

Given

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Required

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$f(x) = \left \{ {{1\ 9 \le x \le v^\frac{1}{3} - 9} \atop {0\ elsewhere}} \right.$

The CDF is:

$F(x) = \int\limits^{v^\frac{1}{3}}_9 1\ dx$

Integrate

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Expand

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So:

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