Help meeee will give brainlest

Mathematics

2 answers:

Elina [12.6K]4 years ago

6 0

Kelly had to work for 269 hours because

8 x 27 = 216

216 + 53 = 269

creativ13 [48]4 years ago

4 0

Help me I will help you

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Find the values of the variables

kogti [31]

Well to find the values of the variables, you would have to use the Pythagorean Theorem. The Pythagorean Theorem states that a²+b²=c². A being one side of the triangle, b being the other side, and c being the hypotenuse. The hypotenuse is the slanted and the longest side of a right triangle. So let's find the the total amount of x and y. 5+7=12 Just plug in the numbers into the equation 12²+5²=c² C would equal 13. So we know that x+y=13. If we plug in 7 and 5 into the equation (solving for y) 7²+5²=c², C would equal 8.6. To find x just do 13-8.6 and we get 4.4. So we know that y=8.6 and x=4.4. Hope I helped!

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4 years ago

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zhuklara [117]

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3 years ago

Read 2 more answers

Which expression is equivalent to 3 sqrt 27x^18

shusha [124]

Assuming your original expression was 3√(27x¹⁸), the answer is 9x⁹√(3).

We split up the radicand into perfect squares. Once we do, we take out the things that were squared:
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$
$=9x^9\sqrt{3}$

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3 years ago

Which set contains rational numbers?

neonofarm [45]

Rational numbers are any numbers that terminate (the decimal ends somewhere)

The only set that does this is D, since

$\sqrt{25} = 5$