Help will mark brainliest.......................................

Mathematics

2 answers:

Norma-Jean [14]4 years ago

8 0

When solving problems like this, opposite angles will be equal to 180 when added together. So, when solving for C, you need to find x. You can do this by adding angles D and B.
3x + 9 + 2x - 4 = 180.
3x +2x + 9 - 4 = 180
5x + 5 = 180
5x + 5 - 5 = 180 - 5
5x = 175
5x/5 = 175/5
x = 35
Now, fill in x in angle A and C.
2x + 3 + C = 180
2(35) + 3 + C = 180
70 + 3 + C = 180
73 + C = 180
73 - 73 + C = 180 - 73
C = 107
The angle measure of angle C is 107. Hope this helps!

tekilochka [14]4 years ago

3 0

I'm not gonna give the answer because you have to solve it. Sorry. But I'll help you get it.

Step 1: solve the equation for each angle
Step 2: Add the totals from each angle
Step 3: Divide the total by 360
Step 4: You got your answer

I hope this helped! I'm sorry I answered really late.

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Simplify the following expression.

OverLord2011 [107]

Answer:

Step-by-step explanation:

Evaluate the power:

Reduce:

Then simplify:

3h^4b^4/6h^5b

B^4/2hb

Simplify expression:

b^3/2h

I hope this helped, and I didn’t confused you. Good luck!

4 0

3 years ago

PLEASE SOLVE!! DUE RIGHT NOW!!! WILL MARK BRAINLIEST IF ANSWERED AND CORRECT!!!!!

Agata [3.3K]

Step-by-step explanation:

a) The measure of angle 7 is also 47 degrees. We know this because angle 5 and angle 7 are vertical angles and vertical angles are always equal.

b and c) Since we know that a straight line has an angle of 180 degrees and that the sum of angle 5 and angle 6 will add to this, we can use that to find the value of x like this:

$47+2x-5=180\\47-5+2x=180\\42+2x=180\\42-42+2x=180-42\\2x=138\\\frac{2x}{2} =\frac{138}{2} \\x=69$