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4 years ago

Given ƒ(x) = 9x + 54, find x when ƒ(x) = 18. A) −6 B) −4 C) 3 D) 8

Mathematics

2 answers:

beks73 [17]4 years ago

6 0

Answer: B

Step-by-step explanation:

Well, they told you what f(x) equals. So make the function of f(x) equal to the value they gave, 18

$18=9x+54$

Subtract 54 from both sides to get:

$-36=9x$

Divide both sides by 9 to get x = -4

krek1111 [17]4 years ago

5 0

Answer:

-4 =x

Step-by-step explanation:

ƒ(x) = 9x + 54

Let f(x) = 18

18 = 9x+54

Subtract 54 from each side

18-54 = 9x + 54-54

-36 = 9x

Divide each side by 9

-36/9 = 9x/9

-4 =x

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3 years ago

The map shows the location of the airport and a warehouse in a city. Though not displayed on the map, there is also a factory 10

kipiarov [429]

step 1

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step 3

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3 years ago

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Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

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height = 7 inches

Volume of regular prism is given by area of base * height

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_________________________________________________

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3 years ago