Evaluate the expression.3-2
A. -9
B. 9
C. 
D. 
Answer: C
Mathematics
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Multiply using the rule for finding the product of the sum and difference of two terms.(4 - 9r)(4 + 9r)
A. 16 - 9r2 B. 16 - 72r - 81r2 C. 16 - 81r2 D. 16 + 72r - 81r2
Mathematics
Find an equation of the sphere that passes through the point (7,-2,9) and has center (-2,3,-3).
What will be an ideal response?
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 6 - x2
D. 
Mathematics
Which is not a method of reasoning used in geometry?
A. construction B. induction C. intuition D. deduction
Mathematics