3 years ago

1

Mathematics

1 answer:

Blababa [14]3 years ago

7 0

your answer is going to be numbers 3

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If a/\2+1/a/\2=11, then a+1/a=?

Nadya [2.5K]

Answer:

$\pm \sqrt{13}$

Step-by-step explanation:

$\bigg(a + \frac{1}{a} \bigg)^{2} = {a}^{2} + \frac{1}{ {a}^{2} } + 2 \times a \times \frac{1}{a} \\ \\ \bigg(a + \frac{1}{a} \bigg)^{2} = 11 + 2 \\ \\ \bigg(a + \frac{1}{a} \bigg)^{2} = 13 \\ \\ \bigg(a + \frac{1}{a} \bigg) = \pm \sqrt{13}$

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3 years ago

A membership to LA Fitness is on sale for $ 112 50. That represents

RSB [31]

Answer:

Step-by-step explanation:

let the original price be x

discount is 25%, .25x

discounted price x-.25x=.75x

112.50=.75x

x=150 was the membership selling before the discount

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3 years ago

Compare. >,< or = for each ? 7 yd 1 ft ? 25 ft , 38 in ? 3 ft

IceJOKER [234]

7 yd > 1 ft, 25 ft > 38 in. idk about that 3 ft there

3 0

4 years ago

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Triangle ABC and DEF are similar what is the length of segment DF?

Ipatiy [6.2K]

Answer:

Proportionate to whatever length the corresponding segment for the similar triangle.

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3 years ago

Evaluate the expression for c = -19.<br> C + 15 =

KonstantinChe [14]

Answer:

the Answer is -4

Step-by-step explanation:

since you add 15 to -19 you get -4

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3 years ago

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