Convert the units using unit fractions.320 min = 
hr
A. 5
B. 19,200
C. 3200
D. 5
Answer: D
Mathematics
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Find the exact value for the expression.sec 
A. - 
B. -1
C. - 
D. - 
Mathematics
Solve the equation.
+ y = -4
A. y = -26
B. y = - 
C. y = - 
D. y = 
Mathematics
Use the fundamental counting principle to count the number of outcomes. A sports shop sold tennis rackets in 3 different weights, 3 types of string, and 4 grip sizes. How many different rackets could they sell?
A. 10 B. 24 C. 27 D. 36
Mathematics
Factor the perfect square.x4 - 14x2 + 49
A. (x2 - 7)2 B. (x2 + 7)2 C. (x - 7)2 D. (x - 7)(x + 7)
Mathematics