Solve the equation.7x = 12
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve.In a practice run, a race car driver's speed is clocked at 140.847 mph at the end of his first lap, and at 167.228 mph at the end of the next lap. How much faster was he driving at the end of the second lap?
A. 26.391 mph B. 25.381 mph C. 26.481 mph D. 26.381 mph
Mathematics
Refer to a normal distribution described by the following figure. The mean is ? and the standard deviation is ?.
If the standardized value of x is -1.25, then x =
A. 62.5. B. 42.5. C. 65. D. 51.25. E. none of these
Mathematics
Perform the indicated operation by hand.0.9 ÷ 0.06
A. 16 B. 15 C. 1.5 D. 4
Mathematics
Find P when E = 120 V and R = 220 ê.
E2 P = ÄÄ. R a. 0.54 A b. 65.5 W c. 29.8 W d. 55.2 W e. 31.9 W
Mathematics