Decide whether the statement is true or false.If the radius of a sphere is multiplied by n, then the surface area is multiplied by n2.
A. True
B. False
Answer: A
Mathematics
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For the given polar equation, write an equivalent rectangular equation. 8r cos ? + 3r sin ? = 1
A. 8y + 3x = 1
B. 8x + 3y = 1
C. 
+ 
= 1
D. 8x + 3y = x2 + y2
Mathematics
Multiply.
A. 938,528 B. 937,528 C. 948,528 D. 938,628
Mathematics
Use synthetic division to perform the division.
?
?
A. 
B. ?
C. ?
D. ?
E. none of these
Mathematics
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 
2(x2 + 3)5
A. - 
, multiplicity 2, touches x-axis; -3, multiplicity 5, crosses x-axis
B. - 
, multiplicity 2, crosses x-axis
C. 
, multiplicity 2, touches x-axis; 3, multiplicity 5, crosses x-axis
D. - 
, multiplicity 2, touches x-axis
Mathematics