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alexdok [17]
4 years ago
15

(5x²+2) - (-4x²+7)+(-3x²-5)

Mathematics
1 answer:
svp [43]4 years ago
6 0

Answer:

6x^2   -10

Step-by-step explanation:

(5x²+2) - (-4x²+7)+(-3x²-5)

Distribute the minus sign

(5x²+2) +4x²-7 +(-3x²-5)

Combine like terms

5x²+4x²-3x²  +2-7-5

6x^2              -10

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Which relation is a function?
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Answer:

C.) or the third one

Step-by-step explanation:

Each input has one output.

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3 years ago
What does this equal 2(-3)(5)=
Ipatiy [6.2K]

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The answer to the question provided is -30.

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The graph of y = 3 over the sqaure root of x
mr_godi [17]

Answer:

f(x) =\frac{3}{\sqrt{-x}}-2

Observe the attached image

Step-by-step explanation:

The original function is:

y =\frac{3}{\sqrt{x}}

If we have a function g(x), then the graph of g(-x) will be equal to the graph of g(x) reflected on the y-axis.

In the same way, the graph of g(x)-2 is equal to the graph of g(x) displaced 2 units down

In this case y = g(x)=\frac{3}{\sqrt{x}}

Then

g(-x) =\frac{3}{\sqrt{-x}}

Finally

f(x) =g(-x)-2 =\frac{3}{\sqrt{-x}}-2

f(x) =\frac{3}{\sqrt{-x}}-2

The graph of f(x) is equal to the graph of y =\frac{3}{\sqrt{x}} reflected on the axis-y and displaced 2 units downwards as seen in the attached image

6 0
4 years ago
What would x be equal to?
Vilka [71]

Answer:

x = \frac{C-By}{A}

Step-by-step explanation:

Given

Ax + By = C ( subtract By from both sides )

Ax = C - By ( divide both sides by A )

x = \frac{C-By}{A}

4 0
3 years ago
Philip jogged 3 1/2 miles yesterday in 7/8 of an hours what is his constant of proportionality
marishachu [46]

Answer:

4 miles per hour

Step-by-step explanation:

Let the miles jogged be directly proportional to the hours taken hence we say that m=kh where m is miles, k is constant of proportionality and h is the number of hours. Making k the subject of the formula then k=\frac {m}{h}. Substituting miles jogged with 3.5 miles and hours with 7/8 hours as given then

k=\frac {3.5}{7/8}=4

Therefore, the constant of proportionality is 4 miles per hour

8 0
3 years ago
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