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kondor19780726 [428]
4 years ago
15

In triangle ABC, side AB measures 3 cm, side BC measures 5 cm, and side AC measures 7 cm. The measures of the angles are 21.8º,

38.2º, and 120º. What could the measure of angle A be? 21.8º 38.2º 120º answer is 38.2
Mathematics
2 answers:
Crazy boy [7]4 years ago
7 0

Answer:

B

Step-by-step explanation:

I got it correct

Oliga [24]4 years ago
6 0

Answer:

38.2º

hope you have a good day!

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Explain how you did it
Serhud [2]
Sorry go to quizlit it can help you
8 0
3 years ago
For what value of x do the expressions 2/3x+2 and 4/3x _6 have the same value?
nikklg [1K]

Answer:

2/3x+2 = 4/3x-6

Solving for x:

2/3x-4/3x= -6-2

-2/3x = -8

x = -8/ (-2/3)

x = 12

Step-by-step explanation:

5 0
3 years ago
One of the angles formed by two intersecting lines is 42°. What is the measure of the other three angles?
Alekssandra [29.7K]
Okay, so first lets think about the angle next to the 42 degree angle.
we know that those two angles must add to 180 degrees, so lets form an equation to figure out the other angle
42 + x = 180
subtract 42 from both sides
x = 138
so 138 degrees is the first AND the 3rd angle
the opposite angle from the 42 degree angle also happens to be 42 degrees

this is because there are two lines in total right?? if you draw out the 42 degree angle and the 138 degree angle, flip that upside down, the angles are the same!!

i hope this helps!! 
8 0
3 years ago
Now can somebody explain how to do this problem in sentences?
Romashka-Z-Leto [24]
First multiply the 6 and the 5 to give you 30.
Then divided 30 by n= 15 so, 30 divided by 15= 2.
Then do 3 - 1 = 2
2 + 2 = 4
                                         Hope this is what you wanted

4 0
3 years ago
.<br> 6-2x. 3x-5<br> simplify
Licemer1 [7]
Step by step 6-6x^2 -5
1-6x^2
7 0
3 years ago
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