Use the Instructional Algorithm for addition or subtraction to perform the operation.664 - 26
A. 638
B. 630
C. 690
D. 538
Answer: A
Mathematics
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Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).3 - 3
i
A. 6(cos 300° + i sin 300°) B. 6(cos 150° + i sin 150°) C. 3(cos 330° + sin i 330°) D. 3(cos 330° + i sin 330°)
Mathematics
The rectangular coordinates of a point are given. Find polar coordinates of the point. Express ? in radians.(11, -11)
A. 
B. 
C. 
D. 
Mathematics
Solve the system by the substitution method.y2 - x2 = 6x - 7 = y
A. 
B. 
C. 
D. 
Mathematics
Solve for the indicated variable.x = 
for y
A. y = 2x - 2w - 2z B. y = 2x - w - z C. y = x - w - z - 2 D. y = 2x + w + z
Mathematics