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3 years ago

A and b are complementary angles and a and c are supplementary angles. If a=xº, (a) express b and c in terms of x

Mathematics

1 answer:

kirza4 [7]3 years ago

3 0

Step-by-step explanation:

a + b = 90

a + c = 180

a) If a = x, the. we can write

x + b = 90 and x + c = 180

b = 90 - x

c = 180 - x

b) c - b = (180 - x) - (90 - x)

= 180 - x - 90 + x

= 90

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6.) Michael & Melissa both claim to be earning a C average, 70% to 79%, in their Latin Class. Use the table below to explain

lyudmila [28]

To figure out the average of Michael and Melissa we must add up all their test scores and divide the by 7; which is the number of tests they took.

Michael:

(80+76+73+70+40+25+10)/7

Melissa:

(88+83+75+70+60+65+62)/7

Michael's average is 53.4

Melissa's average is 71.9

So Melissa is earning a C in Latin.

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1 year ago

Together, angles A and B form a 90° angle. Angle A measures 54°. What is the measure of angle B?

goldfiish [28.3K]

Answer:

Step-by-step explanation:

90-54=36

right angles measure 90 therefore angle a and b has to add up to 90

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3 years ago

L 1.6.3 Quiz: Measurement and Units

TEA [102]

I don’t know i need points sorry so sorry

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2 years ago

What is the perimeter of triangle PQR? Show your work.

zubka84 [21]

You know that the two triangles are congruent because two sides and one angle are congruent.

According to CPCTC, corresponding parts of congruent triangles are congruent, which means that PR and SU are equal.

3y-2=y+4
3y=y+6
2y=6
y=3

3(3)-2=9-2=7

7+4+6=17

The perimeter is 17 feet.

Hope this helps!

6 0

3 years ago

Find the unknown size please I really need answers

katen-ka-za [31]

Answer:

z=80°(corresponding angles)

 $x+z=180°(linear \: pair \: ) \\ 80° + x = 180° \\ x= 100°$ 

y=100 ° (alternate angles)

<h2>Hope it helps you<3</h2>

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2 years ago