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Dvinal [7]
3 years ago
15

The image shows parallel lines cut by a transversal. The expressions represent unknown angle measurements. What is the value of

x?
A)5 B)7 C)9 D)11
Mathematics
2 answers:
katrin2010 [14]3 years ago
6 0

Answer: C

because

it is

babymother [125]3 years ago
4 0

Answer:

Step-by-step explanation:

the answer is B cause a Supplementary angles sum is 180°. So, set the angles equal to 180° and solve for x.

11x + 8 + 12x + 11 = 180

23x + 19 = 180

23x = 161

x = 7

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If there are 50 questions in a test, and each one is the same number of points, and one person gets 39 out of 50, what is his sc
aev [14]
The answer is39/50 * 100=78
3 0
4 years ago
There are 8 chairs in each row in the movie theater. The theater hoped to sell tickets to 134 couples who would like to sit next
harina [27]

Answer:

17 rows

Step-by-step explanation:

134/8=16.75

round up because you can't have .75 of a person

5 0
3 years ago
A town's population is 43200. About 100 people move in to town each month. A nearby town has a population of 50075 and about 175
Nata [24]
Im sorry i give up and
4 0
3 years ago
Find the degrees of all the sides
spayn [35]
You can use the law of Cosines to solve  an SSS triangle.

cos A = \frac{b^2 + c^2 - a^2}{2bc}
a = 13
b = 21
c = 29
Lets find A first:
cos A = \frac{b^2 + c^2 - a^2}{2bc}
cos A = \frac{21^2 + 29^2 - 13^2}{2(21)(29)}
cos A = \frac{441+ 841 - 169}{1218}
cos A = \frac{1113}{1218}
cos A = \frac{53}{58}

A = cos^{-1}(\frac{53}{58}) = 23.96509

Now lets find B
cos B = \frac{a^2 + c^2 - b^2}{2ac}
cos B = \frac{13^2 + 29^2 - 21^2}{2(13)(29)}
cos B = \frac{169 + 841 - 441}{754}
cos B = \frac{569}{754}

B = cos^{-1}(\frac{569}{754}) = 41.0059

Since we know A and B we can use 
C = 180 - A - B to find C

C = 180 - A - B
C = 180 - 23.96509 - 41.0059
C = 115.0291

A = 23.9650
B = 41.0059
C = 115.0291

Round to nearest tenths.
A = 24.0
B = 41.0
C = 115.0

6 0
4 years ago
Points A, B, and C are on line AC. Angle CBD has a measure of 140°. What is the measure of angle ABD? 40° 50° 60° 70°
melamori03 [73]

Answer: The correct option is 1 and measure is 40.

Explanation:

It is given that points A, B, and C are on line AC. Angle CBD has a measure of 140°.

Draw a diagram using given information,

From the figure it is noticed that the angle CBD and angle ABD are lies on straight line and lies on the same arc. So, the angle CBD and angle ABD are supplementary angles and their sum is 180 degree.

\angle ABD+\angle  CBD=180

\angle ABD+140=180

\angle ABD=180-140

\angle ABD=40

Therefore, the correct option is 1.

7 0
4 years ago
Read 2 more answers
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