Multiply the expression geometrically and symbolically.x(x + 9)
What will be an ideal response?
x(x + 9) = x2 + 9x
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Find the center, foci, and vertices of the ellipse.36x2 + 9y2 = 324
A. center at (0, 0)
foci at (- 3
, 0) and (3
, 0)
vertices at (-6, 0), (6, 0)
B. center at (0, 0)
foci at (0, 6) and (3, 0)
vertices at (0, 36) and (9, 0)
C. center at (0, 0)
foci at (0, - 3
) and (0, 3
)
vertices at (0, -6), (0, 6)
D. center at (0, 0)
foci at (0, -6) and (0, 6)
vertices at (0, -36), (0, 36)
Solve the problem.Mike Penn is an employee of Acme Manufacturing Company. He has an 8-hr workday and each day is paid $0.30 for each unit produced or the hourly rate, whichever is greater. His hourly rate is $6.50 per hour. Last week he produced 132 units on Monday, 167 units on Tuesday, 124 units on Wednesday, 136 units on Thursday, and 147 units on Friday. What were his gross earnings for the week?
A. $243.25 B. $260.00 C. $296.50 D. $308.00
Solve the equation graphically by finding x-intercepts.x2 - x - 5 = 0
A. x = -2.79 or x = 1.79 B. x = 0 or x = 1 C. x = -1.79 or x = 2.79 D. x = -2.29 or x = 2.29
Find a general term an for the sequence whose first four terms are given.4, 16, 64, 256, . . .
A. an = 12n B. an = 4n C. an = 4n-1 + 3 D. an = 4 + 12(n - 1)