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Kamila [148]
3 years ago
7

Simplify the rational expressions. State any excluded values. X^2-4/2-x

Mathematics
1 answer:
tatiyna3 years ago
4 0

Answer:

-x-2;  x\neq2

Step-by-step explanation:

\frac{x^2-4}{2-x}-->

\frac{(x-2)(x+2)}{(2-x)} -->

-(x+2); x CAN'T equal 2, because the denominator of the original fraction would be 0, which would make the term undefined.

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The quotient of two rational numbers is positive. What can you conclude about the signs of the dividend and the divisor? That’s
satela [25.4K]

Answer:

The divisor and dividend have the same signs.

Step-by-step explanation:

Let's look at all of the possible outcomes of dividing with different signs.

Positive / positive = positive

Positive / negative = negative

Negative / positive = negative

Negative / negative = positive

We can see that whenever the signs are the same, the quotient is positive.

6 0
3 years ago
A rectangle measures 15 2 inches by 4 3 inches. What is its area?
IRINA_888 [86]

Answer:

65.36

Step-by-step explanation:

15.2 x 4.3 = 65.36

4 0
2 years ago
-3 1/2=1/2 x+1/2 x+x simplified?
Elina [12.6K]
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- 7/2 = 2x
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4 0
3 years ago
Please help, I have been trying for a while :(<br><br>question on photo​
Zigmanuir [339]

Answer:

\frac{x-22}{(x+2)(x-4)}

Step-by-step explanation:

multiply the numerator/denominator of the first fraction by (x - 4)

multiply the numerator/denominator of the second fraction by (x + 2)

this ensures that the fractions have a common denominator

\frac{4}{x+2} - \frac{3}{x-4}

= \frac{4(x-4)}{(x+2)(x-4)} - \frac{3(x+2)}{(x+2)(x-4)} ← subtract numerators leaving the common denominator

= \frac{4x-16-3x-6}{(x+2)(x-4)}

=\frac{x-22}{(x+2)(x-4)}

4 0
2 years ago
How much is 608 divided 19 in area model
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Answer:

608 ÷ 19 = 32

Step-by-step explanation:

608 ÷ 19 = 32

Hope this helps! :)

5 0
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