Factor the sum or difference of two cubes.5k3 + 320
A. 5(k + 4)(k2 - 4k + 16)
B. 5(k + 20)(k2 - 20k + 80)
C. 5(k + 4)(k2 + 4k + 16)
D. 5(k - 4)(k2 + 4k + 16)
Answer: A
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Find an equation of the line that satisfies the conditions. Write the equation in standard form.Through (0, 5); m = - 
A. 3x + 2y = -15 B. 2x + 3y = 15 C. 2x + 3y = -15 D. 2x - 3y = 15
Solve the equation by the square root property.3(x - 2)2 = 18
A. {-2 ± 
}
B. {-4, 8}
C. {-8, 4}
D. {2 ± 
}
Solve the problem.A projectile is fired from a cliff 100 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 170 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. How far from the base of the cliff is the height of the projectile a maximum?
A. 225.78 ft B. 777.34 ft C. 451.56 ft D. 325.78 ft
Convert to a logarithmic equation.5-3 = 
A. -3 = log 1/125 5
B. -3 = log5 
C. 
= log5 -3
D. 5 = log3 