HELP PLEASE QUICK multiple choice.

Mathematics

2 answers:

Nostrana [21]2 years ago

6 0

{−13, 13}

Answer:

Solution given:

7w²=1183

w²=1183/7

w=√(169)

w=±13

olchik [2.2K]2 years ago

5 0

Answer:

{-13, 13}

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Elodia [21]

Factors are: 0, 1, 2, 4, 8, 16

6 0

3 years ago

Read 2 more answers

I need to use the Pythagorean Theorem to find X. I don’t know how to do that!!

frutty [35]

Answer:

17) x=8

18) $x=\sqrt{189}$ or $x= 3\sqrt{21}$

Step-by-step explanation:

So the rule is $a^{2} +b^{2} =c^{2}$ , "c" being the hypothenuse, or the long line that is opposite to the right angle.

17) We know that both values of x are equal to each other, which makes everything 10x easier!

$x^{2} +x^{2} =(8\sqrt{2}) ^{2}$

(by the way we know the x values are our a and b values because they are legs! the way I like to remember the legs is that they are connected to the right angle box, and therefore support the hypothenuse)

simplify (╥︣﹏╥)

$2x^2=8^2(\sqrt{2} )^{2}$

$2x^2=64(2)$

$2x^2=128$

$x^{2}= 128/2$

$x^{2} =64$

x=8

18) Just pretend that the flipped triangle doesn't exist. It's parallel to the other triangle with values on it, and basically servers no purpose other than being parallel to the sister triangle :)

Anyways, since we know the hypothenuse (15) but we don't know one of our leg values (x), we're going to change our equation a bit!

$c^{2} - b^{2} = a^{2}$