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klio [65]
3 years ago
8

NEED ANSWER FAST WILL GIVE BRAINLIEST what is −3.9 − 8.9

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
6 0
Answer:
-12.8
Hope this helps! :)
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Write the equivalent expression for: n^{2}-14n+49
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On analyzing a function, John finds that f(3) = 7. This means that the graph of f passes through the point
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F(x) is also known as y, so in this case, x is 3 and y is 7. Therefore, graph f passes through point (3,7).
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1. Name the angle below in four ways. Then classify it as acute, right, obruse, or straight.
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Give the excluded values for the rational equation.<br><br> (3x)/(x-4)-(x+3)/(x+4)=(2x+7)/(x^(2)-16)
scoray [572]

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{x^2-16}

We factor the denominators

Factor x^2 - 16

x^2 - 4^2

We use a^2 - b^2 = (a+b)(a-b)

so x^2 - 4^2 = (x+4)(x-4)

Replace it in the given equation

\frac{3x}{x-4}  - \frac{x+3}{x-4} = \frac{2x+7}{(x+4)(x-4)}

Excluded values are the values that makes the denominator 0

we have (x-4)  and (x+4) in the denominator

We set the denominator =0 and solve for x

x-4 =0

Add 4 on both sides

x= 4

x+4=0

subtract 4 onboth side

so x= -4

Excluded values are x=-4 and x=4




8 0
3 years ago
Read 2 more answers
The graph below shows the solution to which system of inequalities
Oksi-84 [34.3K]
The answer is
the option A
<span>The graph shows the solution of the system of inequalities
y> -3
y<=-x

using a graph tool
see the attached figure</span>

5 0
3 years ago
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