3 years ago

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

Mathematics

2 answers:

Olenka [21]3 years ago

8 0

It would be 24 4×20/4+4 80/4 20+4 24

Zanzabum3 years ago

4 0

Answer:

the answer is 3

Step-by-step explanation:

apex said so <3

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damaskus [11]

Answer & Step-by-step explanation:

The formula is given in the middle. You are supposed to insert the value of x into this formula to find the value of y (like in the first given example):

$x=-2\\y=2(-2)+5\\y=-4+5\\y=1$

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$x=-1\\y=2(-1)+5\\y=-2+5\\y=3$

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$x=0\\y=2(0)+5\\y=0+5\\y=5$

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$x=1\\y=2(1)+5\\y=2+5\\y=7$

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$x=2\\y=2(2)+5\\y=4+5\\y=9$

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3 years ago

F(x)= x squared + 6x + 8

defon

Answer: (x+4) (x+2)

Step-by-step explanation:

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3 years ago

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navik [9.2K]

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3 years ago

Simplify the expression -3 + 1/3 x + (-4.5) - 1/5x

WITCHER [35]

Answer:

Step-by-step explanation:

$-3 +\dfrac{1}{3}x - 4.5 -\dfrac{1}{5}x\\\\\\= -3 - 4.5 +\dfrac{1}{3}x - \dfrac{1}{5}x\\\\\\= - 7.5 + \dfrac{1*5}{3*5}x - \dfrac{1*3}{5*3}x\\\\\\= -7.5 +\dfrac{5}{15}x-\dfrac{3}{15}x\\\\\\= -7.5 + \dfrac{5-3}{15}x\\\\\\= -7.5 +\dfrac{2}{15}x$

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2 years ago

Read 2 more answers

Tyla is simplifying the expression 6 - 2x + 5+ 4x here is their work:

Olin [163]

A. You can not add numbers with different variables.

B. 11 + 2x

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2 years ago