Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
A. 16x
B. x 
C. 
D. 
Answer: C
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Solve the problem.Find the optimum number of batches (to the nearest whole number) of an item that should be produced annually (in order to minimize cost) if 270,000 units are to be made, it costs $2 to store a unit for one year, and it costs $520 to set up the factory to produce each batch. Assume that units of this item will be sold off throughout the year, so the cost equation will use the average cost.
A. 18 batches B. 16 batches C. 25 batches D. 23 batches
Provide an appropriate response.Mark's teacher asked him to solve the following problem: "One leg of a right triangle is 7 m longer than the other. The length of the hypotenuse is 13 m. Find the lengths of the legs." Mark translated the problem into the following equation: 
. Why is this equation not correct and what would the correct equation be?
What will be an ideal response?
Write a quadratic equation in the form ax2 + bx + c = 0 that has the given numbers as solutions.5i, -5i
A. x2 - 10 - 25 = 0 B. x2 - 25 = 0 C. x2 + 25 = 0 D. x2 + 10 + 25 = 0
Solve the given problem using Galileo's formula, d = 16t2. Round answer to the nearest tenth.A young boy is delighted to drop various objects from a hotel balcony to the ground below. If he is 
above the ground, how long does it take for one of the objects to fall to the ground?
A. 225.0 sec B. 14.1 sec C. 15 sec D. 3.8 sec