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Solnce55 [7]
3 years ago
5

which values must be excluded from the domain of the variable in the expression x²-49/x x=8, x=7, x=0 or x=-7

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
7 0
00000000000000000000000000000000000000000000000000
Pani-rosa [81]3 years ago
6 0

Answer:

x = 0

Step-by-step explanation:

Since we cannot divide by 0, the value of x which results in a denominator that is 0 is a value excluded from the domain;

This value can be found by setting the denominator equal to 0;

In this case, it is very simple as the denominator expression is simply "x", so the exluded value is: x = 0.

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Does anyone know how to solve this math problem?
bezimeni [28]

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Step-by-step explanation:

<u>Given:</u>

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2 years ago
If f(x)=4x+2, find f(-3)
almond37 [142]

Answer:

f(x)=-10

Step-by-step explanation:

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so f(x)=4x+2

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7 0
2 years ago
One line passes through the points \blueD{(-3,-1)}(−3,−1)start color #11accd, (, minus, 3, comma, minus, 1, ), end color #11accd
mart [117]

Answer:

The lines are perpendicular

Step-by-step explanation:

we know that

If two lines are parallel, then their slopes are the same

If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)

Remember that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

<em>Find the slope of the first line</em>

we have the points

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substitute in the formula

m_1=\frac{-9+1}{1+3}

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<em>Find the slope of the second line</em>

we have the points

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substitute in the formula

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<em>Compare the slopes</em>

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Find out the product

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8 0
3 years ago
Read 2 more answers
Pls help I need it quickly thanks
koban [17]

Answer:

56n thats what ben said

Step-by-step explanation:

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