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3 years ago

What value of x will make this true?

Mathematics

2 answers:

ss7ja [257]3 years ago

7 0

x=36

I hope this helps! :)

Rom4ik [11]3 years ago

5 0

Answer: x = 36

Step-by-step explanation:

x = 36 only if 1/2 is being used as an exponent, which i think it is

simplify by distributing ^2 on both sides; equation is on next line

(x^1/2)^2 = 6^2 which when evaluated is x = 36

hope this helped, good luck! <3

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Which of these is the algebraic expression for "4 times the sum of 2 and y?"

Volgvan

Answer:

$4(2 + y)$

Step-by-step explanation:

"4 times the sum of 2 and y".

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3 years ago

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September 6 is a Read Book Day.Polina read 5 times as many pages as Marcus read.Together,the read 108 pages.How many pages did e

Gemiola [76]

Answer:

The number of pages that Polina read was 90 and the number of pages that Marcus read was 18

Step-by-step explanation:

Let

x -----> number of pages that Polina read

y ----> number of pages that Marcus read

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x+y=108 ----> equation A

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3 years ago

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3 years ago

If sin square theta = 0.75, then cos =

sergeinik [125]

Answer:

$\cos\theta=\pm0.5$

Step-by-step explanation:

Given:

$\sin^2\theta=0.75$

To find $\cos\theta$

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

$\sin^2\theta+\cos^2\theta =1$

Plugging in $\sin^2\theta=0.75$ in the above relation.

$0.75+\cos^2\theta =1$

Subtracting both sides by 0.75.

$0.75+\cos^2\theta-0.75 =1-0.75$

$\cos^2\theta =0.25$

Taking square root both sides.

$\sqrt{\cos^2\theta} =\sqrt{0.25}$

∴ $\cos\theta=\pm0.5$ (Answer)

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3 years ago

What value of x will make this true?​

What value of x will make this true?