Simplify the radical. Assume that all variables represent nonnegative real numbers. 
, n ? 0
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve.On a map, the length of a nature-center trail is 8.5 cm. If the scale is 3 cm to 43 km, what is the actual length of the trail? Round your answer to the nearest tenth, if necessary.
A. 121.8 km B. 243.6 km C. 125.8 km D. 122.8 km
Mathematics
Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 - 7x
A. x2 - 7x + 
= 
2
B. x2 - 7x - 
= 
2
C. x2 - 7x + 
= 
2
D. x2 - 7x + 49 = (x - 7)2
Mathematics
Solve the equation symbolically.y + 8 = -1.8
A. 6.2 B. -9.8 C. 9.8 D. -6.2
Mathematics
Classify the system as consistent or inconsistent, and dependent or independent. x + 4y = 132x + 8y = 26
A. Consistent and dependent B. Consistent and independent C. Inconsistent and dependent D. Inconsistent and independent
Mathematics