Answer:
20
Step-by-step explanation:
2x + 10 + 40 + 90 = 180
2x + 140 = 180
180 - 140 = 40
40 / 2
x = 20
The square signifies the angle is 90 degrees.
All triangle interior angles add up to 180 so:
2x = 180 - 140
2x = 40
{(-2, 6), (-5, -1), (3, 7), (-5, 0)}
Domain: The domain is all the x-values (-2, -5, 3, -5)
Range: The range is all the y-values (6, -1, 7, 0)
Function: It's not a function because of the x-value -5 is repeating.
D: 8,100π in²
The formula for area of a circle is
A = πr²
The radius is squared, so if the radius or a new circle is 6 times larger (multiplied by 6), the difference in area will be 36 times greater. So the area is
225π(36) = 8,100π
it depends on how many hours he is driving for.
40!
CE is 12
CD and ED are congruent so they're both 14
12 + 14 + 14 is 40
