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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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Solve for x:<br> I need a answer with an explanation. Algebra 1

kirill115 [55]

Answer: x = -1

Step-by-step explanation:

You need to convert to the same base

$\frac{1}{16} = \frac{1}{2^{4} } = 2^{-4}$

$2^{-4} = 2^{-2x-6}$

For these values to be equal, the exponents have to be equal

-4 = -2x - 6

2 = -2x

x = -1

3 0

3 years ago

The lowest point in Death Valley is Badwater at 282 feet below sea level. The highest point in

Finger [1]

Answer:

Step-by-step explanation:

Given

$Badwater = -282ft$

$Telescope\ Peak = 11043ft$

The position of badwater is negated because it is below sea level

The interpretation of the question, is to calculate the distance between the two given points.

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$Difference = Telescope\ Peak - Badwater$

$Difference = 11043ft - (-282ft)$

Open bracket

$Difference = 11043ft+282ft$

$Difference = 11325ft$

<em>Hence, the distance between both is 11325ft</em>

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3 years ago

Circumference of the circle

lutik1710 [3]

Step-by-step explanation:

The formula for calculating a circle's circumference is πd, where π is an irrational number (3.14....) and d is the diameter of the circle.

In the circle with diameter 19.5cm, the circumference is around 3.14 * 19.5cm = 61.23cm. (A)

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3 years ago

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the price of a shirt was $16. there is a price increase of 4%. which of the following expression gives the new price of the shir

FrozenT [24]

Answer:

$16.64

Step-by-step explanation:

$16 + 4% = $16.64

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3 years ago

What is the value of z in the equation 2z + 8 = −6? −1 −7 1 7

vitfil [10]

Answer:

So the answer is -7

Step-by-step explanation:

2z + 8 = −6

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z = - 7

So the answer is -7

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3 years ago