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jeka57 [31]
3 years ago
5

Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8. Simplify Q + S - T.

Mathematics
1 answer:
Butoxors [25]3 years ago
7 0
Q+S-T=7m+3n+n+5-(-m-3n+8)\\
Q+S-T=7m+4n+5+m+3n-8\\
Q+S-T=8m+7n-3
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How do the expressions 72 / 9 and -72/ (-9) compare when they are evaluated?
Artemon [7]

Answer:

D

Step-by-step explanation:

72/9=8

-72/-9=8 because negative/negative=positive.

7 0
3 years ago
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The two ends of this triangular right prism are equilateral triangles. The
maria [59]

If the two ends of this triangular right prism are equilateral triangles. The surface area of the prism is 74cm.

<h3>Surface area</h3>

Using this formula

A=bh+L(S1+S2+S3)

Where:

L=5cm

b=4cm

h=3.5cm

S1=4cm

S2=4cm

S3=4cm

Let plug in the formula

A=4(3.5)+5(4+4+4)

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A=74 cm

Therefore the surface area of the prism is 74cm.

Learn more about surface area here:brainly.com/question/16519513

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7 0
2 years ago
Try to slove this question for me please
cestrela7 [59]
C. s is your answer.

The sum of 2 angles on a straight line (supplementary angles) is 180°. Vertical angles (opposites where a line intersects) are equal.

The upper left and lower right angles where p crosses the other lines (q, r, t) are 105°.

180 - 105 = 75°

So the upper right and lower left angles are 75°. The lower left angle where p intersects s is 85°, so it is not parallel to the others.

Please let me know if you have any questions.
6 0
3 years ago
PLZ ANSWER QUICK IT WILL HELP A LOT!
OlgaM077 [116]

Answer: A

Step-by-step explanation: all answer choices have the negative sign for the x-value

4 0
3 years ago
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denver, colorado is called "the mile high city" because its elevation is 5280 feet above sea level. someone tells you that the e
grandymaker [24]

A. Note that you are subtracting 5280 with -282

5280 - (-282) = 5280 + 282 = 5562

Denver is 5562 feet taller than death valley

B. your elevation should be ~ 0 feet if you are standing near the ocean, for ocean level is 0 feet.


hope this helps

5 0
3 years ago
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