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2 years ago

Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.

Mathematics

1 answer:

kifflom [539]2 years ago

8 0

N/D =(x²+4x+4)/(x² - 4)

N= x²+4x+4 = (x+2)²
D = x²-4 =(x-2)(x+2)

N/D = (x+2)²/(x-2)(x+2); simplify by (x+2)

N/D = (x+2)/(x-2)

Domain of x ={x∈R≠3} ; in short x =( -2) should be excluded

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3 years ago

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natali 33 [55]

1) value of x =60

2) value of x = 3

Step-by-step explanation:

We need to use cross products to solve the proportions of x.

$1.\,\, \frac{3}{5}= \frac{x}{100}$

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3 years ago

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MatroZZZ [7]

Answer: F

Step-by-step explanation:

This is basically like 2 rectangles. Find the area of both and add them together.

Remember that the area is $l$ x $w$ .

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3 years ago

Round 5049 correct to 1 significant figure

Step2247 [10]

5000

Addition (+) and subtraction (-) round by the least number of decimals.
Multiplication (* or ×) and division (/ or ÷) round by the least number of significant figures.
Logarithm (log, ln) uses the input's number of significant figures as the result's number of decimals.
Antilogarithm (n^x.y) uses the power's number of decimals (mantissa) as the result's number of significant figures.
Exponentiation (n^x) only rounds by the significant figures in the base.
To count trailing zeros, add a decimal point at the end (e.g. 1000.) or use scientific notation (e.g. 1.000 × 10^3 or 1.000e3).
Zeros have all their digits counted as significant (e.g. 0 = 1, 0.00 = 3).
Rounds when required, after parentheses, and on the final step.

- BRAINLIEST answerer ❤️

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2 years ago

Read 2 more answers

Find the value of variable x. If your answer is not an integer, write it in simplest radical form with the denominator rationali

Otrada [13]

Answer:

the answer is 7

Step-by-step explanation:

angle 30°

x=14/2

x=7

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3 years ago