Find the intersection.8x + 6y - 5z = -9, 3x + 3y + 7z = 1
A. x = -57t - 33, y = 71t + 35, z = -6t
B. x = 342t + 33, y = -426t - 35, z = -6t
C. x = 57t + 33, y = -71t + 35, z = -6t
D. x = 57t - 
, y = -71t + 
, z = 6t
Answer: D
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Solve the problem.In order to receive a B in a course, it is necessary to get an average of 80% correct on two one-hour exams of 100 points each, on one midterm exam of 200 points, and on one final exam of 500 points. If a student scores 90, and 85 on the one-hour exams, and 148 on the midterm exam, what is the minimum score on the final exam that the person can get and still earn a B?
A. 307 B. 442 C. 577 D. 397
Complete the ordered pair for the equation.y = -4x - 20(-4, )
A. (-4, 80) B. (-4, -4) C. (-4, 3) D. (-4, -20)
Write the expression as a single trigonometric function.
?
?
A. 
B. 
C. 
D. 
E. 
Approximate the number using a calculator. Round the answer to three decimal places.4
A. 22.195 B. 25.000 C. 512.000 D. 8.944