Solve the system by using the inverse of the coefficient matrix. x + y + z = 4 x - y + 4z = -195x + y + z = 24
A. No solution
B. (-5, 4, 5)
C. (-5, 5, 4)
D. (5, 4, -5)
Answer: D
Mathematics
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Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find sin ?.
A. 
B. 
C. 
D. 
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Add and, if possible, simplify.- 
+ 
A. 
B. 
C. - 
D. - 
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?Which of the following is the best estimate of the product: 7
× 7.
?
A.
?49
B.
?64
C.
?56
D.
?
E.
?57
Mathematics