3 years ago

What is the value of x ?!

Mathematics

1 answer:

puteri [66]3 years ago

3 0

Answer:

Step-by-step explanation:

2x - 1 = 7

2x = 8

x = 4

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How to subtract algebraic fractions

sveticcg [70]

Answer:

$\frac{5x+16}{(x+4)(x+6)}$

Step-by-step explanation:

Before subtracting we require the fractions to have a common denominator.

The lowest common multiple of x + 4 and x + 6 is (x + 4)(x + 6)

Multiply the numerator/denominator of the first fraction by x + 6 and

multiply the numerator/denominator of the second fraction by x + 4

= $\frac{(x+2)(x+6)}{(x+4)(x+6)}$ - $\frac{(x-1)(x+4)}{(x+4)(x+6)}$

Expand the numerators and simplify leaving the denominator

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Step-by-step explanation:

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Temka [501]

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Step-by-step explanation:

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3 years ago

Which of the following are possible values of r?<br><img src="https://tex.z-dn.net/?f=%20%7Br%7D%5E%7B2%20%7D%20%20%3D%20%20%5Cf

marshall27 [118]

Answer:

$r=\frac{\sqrt{3} }{4}$ and $r=-\frac{\sqrt{3} }{4}$

Step-by-step explanation:

when you solve for r in the given equation, you need to apply the square root property, which gives positive and negative answers (both should therefore be considered):

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The answer is (2,2pi/3). I just took the quiz.

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4 years ago

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