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vfiekz [6]
3 years ago
13

Eight times the sum of a number and -2 is the same as nine times the number. Find the number

Mathematics
1 answer:
Alik [6]3 years ago
5 0

Answer:

let \: the \: unknown \: number \: be \: x \\ 8 (x +  (- 2) = 9 \times x \\ 8  (x - 2) = 9 \times x \\ 8x - 16 = 9x \\  - 16 = 9x - 8x \\  - 16 = x \\ x =  - 16

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The power P produced by a wind turbine is directly proportional to the cube of the wind speed S. A wind speed of 37 miles per ho
vfiekz [6]

Answer:the output for a wind speed of 40 miles per hour is 810.8 kilowatts.

Step-by-step explanation:

The power P produced by a wind turbine is directly proportional to the cube of the wind speed S. This means that

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Introducing a constant of proportionality, k, it becomes

P = kS

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The expression becomes

P = 20.27S

Therefore, the output for a wind speed of 40 miles per hour would be

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6 0
3 years ago
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4 0
3 years ago
Choose the best unit of measure to find the capacity of a swimming pool.
Marat540 [252]
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6 0
3 years ago
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BRAINLESS!!!
Eduardwww [97]

Answer:

1/2

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7 0
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what is the inverse of the conditional statement? If a polygon the has five angles, then it is a Pentagon
den301095 [7]

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Step-by-step explanation:  We are given to write the inverse of the following conditional statement:

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9 0
3 years ago
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