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kari74 [83]
3 years ago
12

Point C is the center of the circle. The measure of angle ACB is 3x + 120. Arc AB measures 65x – 4. Find the measure of arc AB.

Mathematics
2 answers:
diamong [38]3 years ago
7 0

Answer:

The measure of arc AB is 126°.

Step-by-step explanation:

It is given that point C is the center of the circle. The measure of angle ACB is 3x + 120. Arc AB measures 65x – 4.

The measure of central angle is equal to the measure of arc.

3x+120=65x-4

Solve this equation for x.

120+4=65x-3x

124=62x

Divide both the sides by 62.

\frac{124}{62}=x

2=x

The value of x is 2.

The measure of arc AB is

65x-4=65(2)-4\Rightarrow 130-4=126

Therefore the he measure of arc AB is 126°.

katovenus [111]3 years ago
5 0
In a circle The measurement of a CENTRAL ANGLE (vertex C) is equal to the measurement of the arc intercepted:

65x-4 = 3x+120 ===> 62x=124 & x= 2, hence the arc = 2
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icang [17]
It is c.

explanation:

20+130+h =180

when you solve you get h=50

130+g = 180

g= 50

50+60+f = 180

f=70
7 0
3 years ago
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Find the measure of one interior angle in each regular polygon. round your answer to the nearest 10th if necessary.
dem82 [27]

Answer:

140 degree or Answer D

Step-by-step explanation:

140 degrees is the answer for a Nonagon

8 0
2 years ago
Chang made $156 for 13 hours of work at the same rate, how many hours would he have to work to make $108?
sdas [7]

Answer:

  9 hours

Step-by-step explanation:

"At the same rate" means time and wages are proportional.

  time/wages = t/$108 = (13 h)/$156

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  t = 9 h

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8 0
2 years ago
What is the part and whole of 40% of 20?
pashok25 [27]
The answer is 8

I hope this helps!
5 0
3 years ago
Can someone help me asap!! am timed right now​
Aneli [31]

Answer:

Step-by-step explanation:

Find the value of the left hand side (LHS)

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LHS = 6/20

LHS = 3/10

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B:  1/4  * 6/5 = 6/20 = 3/10

a = 4

b = 6

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