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alisha [4.7K]
3 years ago
11

Evaluate the following expression if x=4 28x - 9 (2x+ 6)​

Mathematics
1 answer:
musickatia [10]3 years ago
6 0

Answer:

-14

Step-by-step explanation:

substitute 4 for x

28(4) - 9 (2(4)+ 6)​

multiply

112-9(8+6)

add numbers

112-9(14)

multiply

112-126

subtract

-14

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Answer:

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Step-by-step explanation:

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The function f(x)=\sqrt{x-7}+9 is translated function y=\sqrt{x} 7 units to the right and 9 units up, so

the domain of the function f(x) is x\ge 7

the range of the function f(x) is f(x)\ge 9

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Which can be simplified to:
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Hope this helps.
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