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mariarad [96]
2 years ago
8

What is the value of the rational expression below when x is equal to 4? x+20/x+4

Mathematics
1 answer:
Aleonysh [2.5K]2 years ago
7 0

Answer:

3

Step-by-step explanation:

All we need to do here is plug in the number 4 for the variable x. Wherever there's an x, kidnap it and replace it with a 4!

\frac{x + 20}{x + 4}

x = 4

\frac{4 + 20}{4 + 4}

Do the addition.

4 + 20 = 24

4 + 4 = 8

\frac{24}{8}

We can simplify this! What is 24 divided by 8?

24/8 = 3

The answer is 3!

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What is the volume of a right circular cylinder with a diameter of 46. 25 cm and a height of 18. 5 cm? Enter your answer in the
Sedbober [7]

The volume of the right circular cylinder is 31064.54 cm³.

What is the formula for the volume of cylinder?

Formula:

V = πr²h.............. Equation 1

Since,

V = Volume of the right circular cylinder

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h = height of the cylinder.

We have given that,

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h = 18.5 cm

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We have to calculate volume of right circular cylinder.

Therefore,

Substitute these values into equation 1

V = 3.14(23.125²)(18.5)

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brainly.com/question/1082469

3 0
2 years ago
Can someone help with that?<br><br>if x+y=2, calculate: <br>P=4x (x-3)+4y(y-3)+8xy​
olganol [36]

Answer:

Step-by-step explanation:

P = 4x(x - 3) + 4y(y - 3) + 8xy

  = 4x² - 12x + 4y² - 12y + 8xy

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6 0
2 years ago
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