Match each angle with its class. 

A.


B.

C.


A. acute
B. obtuse
C. right

Mathematics

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Find the reference angle for the given angle.-403°

A. 43° B. 133° C. 47° D. 137°

Mathematics

Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 2e-x2, y = 0, x = 0, x = 1

A. 4 ?
B. 4 ?
C. 2(e - 1) ?
D. 2 ?

Mathematics

Determine whether the given linear equations are parallel, perpendicular, or neither.y = -7x - 3y = -7x + 3

A. parallel B. perpendicular C. neither

Mathematics

Find the first term and the common ratio of the geometric sequence., . . .

A. a1 = 4, r = 12
B. a1 = , r = 4
C. a1 = 4, r = 
D. a1 = , r = 

Mathematics