3 years ago

Find the measure of the missing angles.

Mathematics

1 answer:

Jet001 [13]3 years ago

3 0

Answer:

a = 33 degrees

Step-by-step explanation:

Note that 57 degrees and Angle a are complementary: they add up to 90 degrees.

Thus, a = 90 degrees less 57 degrees = 33 degrees

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A gas pump fills 2^-2 gallon of gasoline per second. how many gallons does the pump fill in one minute?

astraxan [27]

Answer:

The gas pump filling the gallons in 1 minute will be: 15

Step-by-step explanation:

Given that a gas pump fills 2^-2 gallon of gasoline per second.

As there are 60 seconds in 1 minute.

Thus,

Gas pump filling the gallons in 1 minute will be:

$60\:\times 2^{-2}$

$=60\times \frac{1}{2^2}$ ∵ $a^{-b}=\frac{1}{a^b}$

$\mathrm{Multiply\:fractions}:\quad \:a\times \frac{b}{c}=\frac{a\:\times \:b}{c}$

$=\frac{1\times \:60}{2^2}$

$=\frac{60}{2^2}$

$=\frac{2^2\times \:3\times \:5}{2^2}$

$=3\times \:5$

$=15$ gallons in one minute

Therefore, the gas pump filling the gallons in 1 minute will be: 15

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3 years ago

The length of a rectangle is 6cm longer than the width. The perimeter of the rectangle is 92 cm. Find the length of the width of

Vinvika [58]

Answer:

l=26

w=20

Step-by-step explanation:

l-6=w

2l+2w=92

2l+2(l-6)=92

2l+2l-12=92

4l=104

l=26

(26)-6=w

w=20

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2 years ago

In 8th grade, there are 240 students. What percent are girls if 102 are girls?<br><br> (PLEASE HELP)

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42.5% you would divide 102 by 240

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