Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find sum of the pair of complex numbers.2i, 5i
A. 5 + 2i B. 7 C. 2 + 5i D. 7i
Mathematics
Determine whether the indicated ordered pair lies on the graph of the given equation.y = |x|, (9, -9)
A. Yes B. No
Mathematics
Solve.The nutrition label on a bag of candy says that a serving size is 40 grams. How many ounces are in a serving? Round your answer to the nearest hundredth if necessary.
A. 1.41 oz B. 18.16 oz C. 88 oz D. 1134 oz
Mathematics
Solve the equation.Solve cos ? = 
for ?, where 0° ? ? ? 90°.
A. 45° B. 60° C. 30° D. 90°
Mathematics