Find an equation of a parabola satisfying the given conditions.Focus at (0, -10), directrix y = 10
A. x2 = -10y
B. y2 = -40x
C. y = -40x2
D. x2 = -40y
Answer: D
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Solve the equation.15 ( r + 2 ) = 12 ( r - 3 )
A. r = –20 B. r = –32 C. r = –27 D. r = –13 E. r = –22
Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent of dependent.x = -6y = 7
A. No solution
B. (-6, 7)
C. (7, -6)
D. (0.5, 0.5)
Evaluate the binomial coefficient.
A. 5!
B. 1
C. 
D. 5
Provide an appropriate response.If the total profit (in dollars) from the sale of x lawn mowers is P(x) = 30x - 0.03x2 - 750 + ln(x), use Newton's method to approximate the break-even points for profit. (Note: There are 2 break-even points; one is between 0 and 40, and the other is between 900 and 1000.)
What will be an ideal response?