Answer:
D. 18
Step-by-step explanation:
The polygon given is a 5-sided polygon (pentagon). Sum of all interior angles of a 5-sided polygon = (n - 2) * 180°
= (5 - 2) * 180 = 540°
Therefore:
95° + (7x - 4)° + (3x + 23)° + (9x - 6)° + 90° = 540°
Solve for x
95 + 7x - 4 + 3x + 23 + 9x - 6 + 90 = 540
Add like terms
198 + 19x = 540
19x = 540 - 198
19x = 342
x = 342/19
x = 18
Answer:
Step-by-step explanation:
P=2a+b
Solve for a.
Divide both sides by 2 to isolate a.
P=2a+b
P/2=a+b/2
When you rewrite the equation, it becomes:
a=P/2-b/2 (The sign changes from a positive to a negative because you need to move P/2 to the other side to get a to one side)
Therefore, your final answer is: a=P/2-b/2
Hope this helped!
Answer:
-9
Alternative form:
-
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Steps:
1- Cross out the common factor
2- Calculate the sum or difference
3- Calculate the absolute value
4- Calculate the power
5- Calculate the sum or difference
Answer:
C 27 degrees
Step-by-step explanation:
The sum of the angles of a triangle add to 180. Let x be the third angle
62+ 91 +x = 180
Combine like terms
153+x = 180
Subtract 153 from each side
153+x-153 = 180-153
x =27
we know that
The scale factor is equal to
we have
substitute
therefore
<u>the answer is</u>
