Divide using synthetic division.

A. 10x - 7
B. 10x + 7
C. 10x - 7 + 
D. 10x - 7 - 


Answer: D

Mathematics

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Solve the problem.A projectile is fired from a cliff 400 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 350 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. 1914.06 ft B. 957.03 ft C. 3271.09 ft D. 1357.03 ft

Mathematics

Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 60 meters. The hypotenuse is 20 meters longer than the length of the longer leg. How long is the longer leg?

A. 60 m B. 80 m C. 120 m D. 100 m

Mathematics

Multiply.

A.
B. - 5
C.
D. - 

Mathematics

Solve the equation by completing the square.a2 + 14a + 45 = 0

A. -5, -9 
B. 5, 9 
C. 54, -9
D. , - 

Mathematics