Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.
A. 
B. - 
C. 
D. 
Answer: D
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Find the indicated probability.Two fair dice are rolled. Find the probability that the sum of the two numbers is not greater than 5.
A. 
B. 
C. 
D. 
Solve the problem.On a Touch Tone phone, each button produces a unique sound. The sound produced is the sum of two tones and is given by 
and y = sin (2?ht), where l and h are the low and high frequencies (in hertz = Hz) associated with that button. 
The tone produced is thus given by y = sin (2?lt) + sin (2?ht). Write an expression that models the tone by pressing the "5" button as a product of sines and cosines.
A. y = 2 sin (2247?t) cos (707?t) B. y = 2 sin (707?t) cos (2247?t) C. y = 2 sin (566?t) cos (2106?t) D. y = 2 sin (2106?t) cos (566?t)
Solve the problem.The sum of the reciprocals of two consecutive integers is 
. Find the integers.
A. 5 and 6 B. 11 and 12 C. 6 and 7 D. 4 and 5
Determine whether the slope of the line is positive, negative, zero, or undefined.
A. undefined B. negative C. positive D. zero