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3 years ago

PLEASE ANSWER ALL QUESTIONS 69 POINTS WILL MARK BRAINLIST

Mathematics

1 answer:

IRINA_888 [86]3 years ago

4 0

Answer:

See below

Step-by-step explanation:

Proportional relationship formula is:

y = kx

a) Use point (1, 3.5) to find k:

3.5 = k*1
k = 3.5

b) Unit rate is:

cm per min

c) Point (8, 28) indicates:

Water level of 28 cm after 8 min

d) x = 20, y =?

y = 3.5(20) = 70 cm

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2 years ago

Find (if possible) the complement and the supplement of each angle. (if not possible, enter impossible.) (a) π 10 complement rad

blagie [28]

In this question, we have to find the complement and supplement of the given angles .

Complementary angles are those angles whose sum is 90 degree and supplementary angles are those angles whose sum is 180 degree.

So to find the complement and supplement angles, we need to subtract the given angles from pi/2 and pi respectively .

$\frac{ \pi}{10}
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$\frac{9 \pi}{10}
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3 years ago

Please Evaluate 27 times ( 1/3) to the 3 power. A). 1 B). 3 C). 9 D). 27

topjm [15]

Answer:

you want to follow PEMDAS so you would multiply 27 by 1/3 to get 81.003, which you would round to 81, then you would multiply 8 to the third power and you would get 512.

Step-by-step explanation:

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81^3

512

7 0

3 years ago