Convert the temperature. Give your answer to the nearest tenth of a degree.31°F = °C
A. 14.8°C
B. -0.6°C
C. 87.8°C
D. 23.8°C
Answer: B
Mathematics
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Use the half-angle formulas to simplify the given expression.
A. 6 sin 8x
B. 3 sin 8x
C. 2
sin 8x
D. 3 cos 8x
Mathematics
Find the total area of the region between the curve and the x-axis.y = 
; 1 ? x ? 4
A. 
B. 2
C. 4
D. 
Mathematics
Fill in the blank with one of the words or phrases listed below.
Fractions that have the same denominator are called 
fractions.
A. least common denominator B. equivalent C. like D. least common multiple
Mathematics
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics