Simplify the radical expression. Assume all variables represent nonnegative real numbers.
A. -7
B. 19
C. 7
D. 49
Answer: A
Mathematics
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Convert as indicated.411 mi to kilometers
A. 388.8 km B. 435.7 km C. 657.6 km D. 255.2 km
Mathematics
Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 
B. x = 20
C. x = 1
D. x = 1
Mathematics
Use the square root property to solve the equation.(x + 2)2 = 15
A. 2 - 
, 2 + 
B. 13
C. -2 - 
, -2 + 
D. - 
, 
Mathematics
Solve.If 2 ft 2 in. of material is used to manufacture one scarf, how much material is needed for 9 scarves?
A. 23 ft 4 in. B. 16 ft 10 in. C. 18 ft 2 in. D. 19 ft 6 in.
Mathematics