Each of the following tables defines a relationship between an input x and an output y. which of the relationships represent functions?
table a
x
-8
-3
0
6
y
24
4
9
72
table b
x
9
15
24
38
y
-14
-16
53
29
table c
x
15
24
24
100
y
-16
53
29
7
table d
x
-8
6
0
6
y
24
4
9
72
a.
table a and table c
b.
table a and table b
c.
table b and table c
d.
table c and table d
select the best answer from the choices provided
a
b
c
d

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.