Solve the problem.A room in the shape of a triangle has sides of length 7 yd, 8 yd, and 13 yd. If carpeting costs $13.50 a square yard and padding costs $4.25 a square yard, how much to the nearest dollar will it cost to carpet the room, assuming that there is no waste?
A. $430
B. $327
C. $412
D. $418
Answer: A
Mathematics
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Solve the problem.A ladder is slipping down a vertical wall. If the ladder is 17 ft long and the top of it is slipping at the constant rate of 5 ft/s, how fast is the bottom of the ladder moving along the ground when the bottom is 
from the wall?
A. 9.4 ft/s B. 0.63 ft/s C. 1.9 ft/s D. 10.6 ft/s
Mathematics
Let Z be the standard normal variable. Find the values of z if z satisfies 
. Round your answer to the nearest hundredth.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Multiply.-4(3x - 7)
A. 12x - 28 B. -12x - 28 C. 12x + 28 D. -12x + 28
Mathematics
The problem that follows refers to triangle ABC.
?
If 
and 
cm, find a.
?
Apply the rules regarding the use of significant digits.
?
A. 23 cm B. ?24 cm C. 19? cm D. 18? cm E. 20? cm
Mathematics