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3 years ago

If f(x)=3(x+5)+4/x what is f(a+2)

Mathematics

1 answer:

dsp733 years ago

3 0

F(a+2) = 3((a+2) + 5) + 4/(a+2)

= 3a + 21 + 4/(a+2)

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Step2247 [10]

Answer:

B. (1,7)

Step-by-step explanation:

We can substitute the x and y values of each coordinate into the inequality and test if they work.

Let's start with A, 5 being y and 0 being x .

$5 > |0|+5\\5> 0+5\\5 > 5$

5 IS NOT greater than 5, they are the exact same, so A is out.

Let's try B, 1 being x and 7 being y.

$7 > |1| + 5\\7 > 1 + 5\\7 > 6$

7 IS greater than 6, so B. (1,7) does work for this inequality!

Let's do C for fun, when 7 is x and 1 is y.

$1 > |7| + 5\\1>7+5\\1>12$

1 IS NOT greater than 12, it is quite less than 12, so C doesn't work.

Therefore B. (1,7) works for the inequality of $y > |x|+5$ .

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2 years ago

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Answer:

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The lower end of the interval is given by:

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2 years ago

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Step-by-step explanation:

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The volume of sphere is $\frac{500}{3}\pi$ inches cubed.