Answer:
Step-by-step explanation:
|x|= 9 is a solution. The range of the absolute value function is [0, infinity).
-|x|=9 not a solution. No absolute value function will return a negative result.
-|-x|=9 not a solution. -(x) = 9 is not true for x = 9.
-|-x|=-9 solution. -9 = -9 is true.
The equation for the area of a circle is A = pi times r^2
The radius is half the diameter, making it 5.
A = pi times 5^2
Simplify to: A = pi times 25
A = 78.5
According to the diagram the answer is 36degree
2y² + y - 3
(2y+3)(y-1)
2y(y-1) + 3(y-1)
2y² - 2y + 3y - 3
2y² + y - 3
2y + 3 = 0
2y = -3
y = -3/2
y = -1 1/2
y - 1 = 0
y = 1
2y² + y - 3 = 0
2(-3/2)² + (-3/2) - 3 = 0
2(9/4) - 3/2 - 3 = 0
18/4 - 3/2 - 3 = 0
18/4 - (3/2 * 2/2) - 3(4/4) = 0
18/4 - 6/4 - 12/4 = 0
(18 - 6 - 12)/4 = 0
(18 -18)/4 = 0
0/4 = 0
0 = 0