Find, correct to the nearest degree, the angle between the planes. Select the correct answer.
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a. 129°
Mathematics
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Determine if the equations in the given pair are equivalent. Each equation has only one solution.y + 1 = 7 and y = 6
A. Equivalent B. Not equivalent
Mathematics
Solve the inequality. Express the solution set in interval notation.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Provide an appropriate response.To what sum will $1000 accumulate if it is invested at 10% compounded annually for one year and then at 10% compounded semiannually for two years?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Convert the equation to the standard form for a hyperbola by completing the square on x and y.y2 - 16x2 - 4y + 64x - 76 = 0
A. 
- (y - 2)2 = 1
B. (x - 2)2 - 
= 1
C. 
- (x - 2)2 = 1
D. 
- (x - 4)2 = 1
Mathematics