Perform the indicated operations. Write the result in the form a + bj.(3 + 
)(-9 - 
)
A. -27 - 20j
B. -7 + 21j
C. -7 - 21j
D. -47 - 21j
Answer: C
Mathematics
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Use formulas for perimeter and area to solve the problem.Angie wants to border her dining room with crown molding. If the room measures 17 ft by 9 ft?, and the crown molding costs $2.68 per foot, what will be her total cost for the job?
A. $69.68 B. $139.36 C. $48.24 D. $91.12
Mathematics
Solve the problem.Let f(x) = x2 + 4x - 3. Find f(-1).
A. f(-1) = 2 B. f(-1) = -3 C. f(-1) = -6 D. f(-1) = -8
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
y
Mathematics
Follow the rules for working with measurements.
Find the volume of the right circular cone.V = __________ cm3Find the lateral surface area of the right circular cone.A = __________ cm2
What will be an ideal response?
Mathematics