Find an equation for the parabola with vertex at the origin.Through (
, 15), opening upward
A. y2 = 12x
B. x2 = -12y
C. x2 = 
y
D. y2 = 60x
Answer: C
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A salesman earns a base salary plus a percentage of sales. The following table shows the income I, in dollars, of a salesman who has sales of d dollars. Round your answers to two decimal places, if necessary. ? d $2500 $3091 $3682 $4273 I $1515.36 $1562.64 $1609.92 $1657.2? A: Complete a table of changes to show that the data are linear.B: Find a linear model for the data.C: Explain in practical terms the meaning of the linear function in part B. Your answer should be stated in terms of base salary plus percentage of sales.
What will be an ideal response?
Parametrize the surface S.S is the portion of the sphere x2 + y2 + z2 = 81 between z = - 
and z = 
.
What will be an ideal response?
Solve the problem.The area of a square is numerically 21 more than the perimeter. Find the length of the side.
A. 7 units B. 28 units C. 25 units D. 98 units
Indicate whether the equation illustrates the additive identity, commutative property of addition, associative property of addition, or additive inverse.5 + 7 = 7 + 5
A. Additive identity B. Associative property of addition C. Commutative property of addition D. Additive inverse