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3 years ago

-33 < -7n - 12 < -26

1 answer:

3 0

-33 < -7n - 12 < -26
First step is to add 12 to both sides.
-33 < -7n < -26-21 < -7n < -14

Now divide both sides by -7.
3 < n < 2

Because you divided by a negative number though, you need to switch up the signs. Both the < will turn into >.
3 > n > 2

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Jonah is thinking of a 2- digit number.It is a multiple of 6 and 12.It is a factor of 108.The sum of its digits is 9.What number

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4 years ago

10 times as much as 0.5 is

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3 years ago

Read 2 more answers

In triangle STU, we have ST = SU = 22 and TU = 8. Let M be the midpoint of <img src="https://tex.z-dn.net/?f=%5Coverline%7BST%7D

dusya [7]

Answer:

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Step-by-step explanation:

1. Calculate the length of SN

Your triangle (below) is a relatively tall isosceles triangle.

∆STN is a right triangle, so we can use Pythagoras theorem to calculate the length of SN.

SN² + NT² = ST²

SN² + 4² =22²

SN² + 16 = 484

SN² = 468

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2. Calculate the length of SX

UM and SN are lines from an angle to the centre of the opposite side, so they are medians.

The medians of a triangle meet at a single point, X — the centroid.

Another characteristic is that the centroid divides each median into segments in a 2:1 ratio.

Thus,

SX = ⅔SN = ⅔ × 6√13 = 4√13

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