Give the prime factorization of the number. Use exponents when possible.415
A. 5 x 83
B. 52
C. 5 x 81
D. 52 x 83
Answer: A
Mathematics
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It takes 13 minutes to preheat your oven. Once the oven is preheated, baking time for a roast is 13 minutes per pound. Using w as the weight of the roast, in pounds, and B for oven time (including preheating time), in minutes, give a formula that shows the oven time for a roast that weighs w pounds. ?
A. 
B. 
C. 
D. None of the above
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set. x + 3y = 26-3x + 2y = -12
A. {(7, 7)} B. {(8, 6)} C. {(-8, 7)} D. Cramer's rule does not apply since D = 0; ?
Mathematics
Find the exact value of the sum.sin 15° - sin 105°
A. - 
B. 
C. - 
D. - 
Mathematics
Find the requested value.Find sin ? if tan ? = - 
and cos ? = 
.
A. 
B. 
C. - 
D. - 
Mathematics