Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 7a2 + a 
+ 
+ 
B. 7a2 + a 
+ 7a 
+ 
C. 7a2 + a 
+ 7a 
D. 7a2 + 
Answer: B
Mathematics
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Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest hundredth.a22= 95, a65= 224
A. a1= 32, d = 129 B. a1= 129, d = 3 C. a1= 32, d = 3 D. a1= 129, d = 32
Mathematics
Use the dot product to determine whether the vectors are parallel, orthogonal, or neither.v = 4i + j, w = i - 4j
A. orthogonal B. parallel C. neither
Mathematics
Solve.A box is made from a rectangular piece of metal with length 25 inches and width 25 inches. The box has no top. 
If the outside surface area of the box is 561 square inches, find x.
A. 4.5 in. B. 5 in. C. 8 in. D. 4 in.
Mathematics
Find the volume of the solid. Use 
for ?.
A. 12
cu cm
B. 100
cu cm
C. 33
cu cm
D. 6
cu cm
Mathematics