Answer:
-3
Step-by-step explanation:
if x= -3
the denominator becomes 0 and the fraction becomes undefined.
Answer:
Area= 12 units squared, Perimeter= 16.12899
Step-by-step explanation:
So, perimeter= 
Answer: D
Step-by-step explanation: go over 5 . Down 1 .
Answer:
9%
Step-by-step explanation:
Let the required number be 100.
Now, according to the question, the number is first increased by 30 %
⇒ 100 + 30 % of 100
⇒ 100 + [(30*100)/100]
⇒ 100 + 30
⇒ 130
Then, it is decreased by 30 %
⇒ 130 - (30 % of 130)
⇒ 130 - [(30*130)/100]
⇒ 130 - 39
⇒ 91
Net Decrease = 100 - 91
= 9
Percent Decrease = (Change in number*100)/100
⇒ (9*100)/100
= 9 %
Answer:
a = 58°
b = 127°
Step-by-step explanation:
a = 180 - 40 - 82
a = 58°
(total angle in a triangle is 180)
b = 82 + 45
b = 127°
(exterior angle = sum of interior angles)
