Determine whether the following quantities are proportional. For the quantities that are proportional, determine the constant of proportionality. If the quantities are not
proportional, select the not proportional option.
a. Radius and diameter of a circle
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b. Radius and circumference of a circle
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c. Radius and area of a circle
[ Select)
d. Diameter and circumference of a circle
[ Select]
e. Diameter and area of a circle
[ Select]

Complete the square to determine the minimum or maximum value of the function defined by the expression. x2 − 12x − 2 a) maximum value at 38 b) minimum value at 38 c) maximum value at −38 d) minimum value at −38

Brent wants to know what is 5 x 1/2

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.