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blsea [12.9K]
3 years ago
15

The measure of an angle is four times the measure of a complementary angle. What is the measure of each angle?

Mathematics
1 answer:
murzikaleks [220]3 years ago
6 0
Sum of two complementary angles.=90
Let 1 angle be x and other be 4x.
So, x+4x=90
⇒5x=90
⇒x=18
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PLEASE SOMEONE HELP ME I WILL GIVE BRAINLIEST
Sidana [21]
20 a: x = 5

20 b: x = 12

17 c: 30
8 0
3 years ago
For the straight line defined by the points (3,57) and (5,87), determine the slope ( m ) and y-intercept ( ???? ). Do not round
Sphinxa [80]

Answer: The slope of the line is 15 and y-intercept is 12.

Step-by-step explanation:  We are given to find the slope and y-intercept of the straight line defined by the points (3, 57) and (5, 87).

We know that

the slope of a line passing through the points (3, 57) and (5, 87) is given by

m=\dfrac{87-57}{5-3}=\dfrac{30}{2}=15.

Since the straight line passes through the point (3, 57), so its equation will be

y-57=m(x-3)\\\\\Rightarrow y-57=15(x-3)\\\\\Rightarrow y-57=15x-45\\\\\Rightarrow y=15x-45+57\\\\\Rightarrow y=15x+12.

So, the required equation of the straight line is y=15x+12.

Thus, the slope of the line is 15 and y-intercept is 12.

4 0
3 years ago
At what values of the variable a is the value of the expression a (a + 5) greater than the value of the expression a (a - 4)?
ser-zykov [4K]

Answer:

every number that is less than -1

Step-by-step explanation:

5 0
3 years ago
Alyssa has 30 pencils, where 60% of the pencils are sharpened. How many sharpened pencils does Alyssa have?
tresset_1 [31]

Answer:

18 sharpened pencils

Step-by-step explanation:

Total = 30 pencils

100% = 30 pencils

1% = 30 ÷ 100 = 0.30

60% = 0.30 x 60 = 18

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b

Step-by-step explanation:

4 0
4 years ago
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