Simplify the expression.a6 ? a7 ? a2
A. a44
B. a15
C. a13
D. a9
Answer: B
Mathematics
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Find all specified roots.Cube roots of 8i
A. -2i, 
+ i, - 
+ i
B. 2i, 
+ i, - 
+ i
C. 2i, 
- i, - 
- i
D. -2i, - 
- i, 
- i
Mathematics
Provide an appropriate response.Using the given frequency distribution table, find the grouped mean.Frequency Distribution of 25 Test Scores Class IntervalMidpointTallyClass Frequency45 - 4947/150 - 5452/155 - 5957//260 - 6462/165 - 6967/170 - 7472//275 - 7977///380 - 8482///385 - 8987///390 - 9492/////595 - 9997///3
A. 180 B. 1,975 C. 72 D. 79
Mathematics
Write the equation of the line whose graph is shown.
A. y = - x - 3 B. y = x - 3 C. y = - x + 3 D. y = x + 3
Mathematics
Divide using long division.(x2 - 3x - 40) ÷ (x + 5)
A. x2 - 8 B. x - 3 C. x - 8 D. x2 - 3
Mathematics