Factor.5x9 - 50x8 - 105x7
A. 5x7(x - 7)(x + 3)
B. 5x7(x - 7)(x - 3)
C. 5x7(x2 - 6x - 21)
D. 5x6(x2 - 6x - 21)
Answer: B
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Solve the formula for the specified variable.A = 
h(b1 + b2); for b1
A. b1 = 
B. b1 = 
C. b1 = 
D. b1 = 
Match the equation of the ellipse with the appropriate description.49y2 = 11,025 - 9x2
A. x-intercepts (1225, 0), (-1225, 0); y-intercepts (0, 225), (0, -225) B. x-intercepts (225, 0), (-225, 0); y-intercepts (0, 1225), (0, -1225) C. x-intercepts (15, 0), (-15, 0); y-intercepts (0, 35), (0, -35) D. x-intercepts (35, 0), (-35, 0); y-intercepts (0, 15), (0, -15)
Find the first term and the common difference.$7.13, $9.73, $12.33, $14.93, . . .
A. a1 = $7.13, d = $7.80 B. a1 = $7.13, d = $2.60 C. a1 = $7.13, d = $1.95 D. a1 = $7.13, d = $7.13
Write the rate as a unit rate.Traveling 406 miles on 14 gallons of gas
A. 29 mi/gal B. 420 gal C. 5684 mi D. 0.034 mi/gal