They left $6.72 for a tip.
42 x 0.16 = 6.72
Answer:
the answer for this problem is x^2+2x-15
Step-by-step explanation:
(x+5)(x-3)
x(x-3)+5(x-3)
x^2-3x+5(x-3)
x^2-3x+5x-15
=x^2+2x-15
Answer: y=(x-1)/2
Step-by-step explanation:
To find the inverse, you want to switch the y with x and x with y. Then, you solve.
y=2x+1 [switch y with x and x with y]
x=2y+1 [subtract both sides by 1]
x-1=2y [divide both sides by 2]
(x-1)/2=y
Now, we know that y=(x-1)/2 is the inverse.
Answer:
Circumcenter
Circumcenter is the only center point on the edge of a triangle. this is true in the case of the right-angle triangle. It exactly lies on the midpoint of the hypotenuse. Circumcenter is the point of intersection of the perpendicular bisector of sides of triangles.