Simplify the expression. Write the answer with only positive exponents. Assume that all variables represent positive real numbers.3a3/2 ? 3a-11/2
A. 3a-8
B. 
C. 
D. 
Answer: C
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?Which is the correct answer in unit rate for the following?
A.
?125 miles in 
hours is equivalent to 50 miles per hour.
B.
?150 feet in 10 seconds is equivalent to 15 feet per second.
C.
?275 cm in 5 minutes is equivalent to 45 cm per minute.
D.
?A clock's minute hand moves 90 degrees in 15 minutes. It is equivalent to the minute hand moving 5 degrees per minute.
E.
?A snail travels 4.5 feet in 12 hours, which is equivalent to traveling 
feet per hour.
and 
intersect at point E. If m
and m
, find x.
What will be an ideal response?
Provide an appropriate response.Graph the equations y = 4x - 1 and y = - 
x + 2 on the same set of axes. These are perpendicular lines. Define perpendicular. How might one determine that these lines were perpendicular by examining the equations, but without actually graphing them?
What will be an ideal response?
Evaluate the expression using the given values.
x = 4, y = 9
A. 87 B. -39 C. -87 D. 39