Evaluate each expression without using a calculator. Give the result in degrees. cos-1 
A. 30°
B. 45°
C. 315°
D. 330°
Answer: B
Mathematics
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Graph.y2 - x2 = 
A. 
B. 
C. 
D. 
Mathematics
Multiply using the Egyptian algorithm.31 × 109
A. 3059 B. 3129 C. 2999 D. 3379
Mathematics
Multiply or divide the fractions. Reduce to simplest form.
÷ 
A. (z + 5)(z + 2)
B. 
C. 
D. 
Mathematics
Write the standard form of the equation of the circle described.Center (6, -7), r = 5
A. (x - 6)2 + (y + 7)2 = 25 B. (x - 6)2 + (y + 7)2 = 5 C. (x + 6)2 + (y - 7)2 = 25 D. (x + 6)2 + (y - 7)2 = 5
Mathematics