Solve the problem.Two forces of magnitude 25 pounds and 40 pounds act on an object. The force of 40 lb acts along the positive x-axis, and the force of 25 lb acts at an angle of 80° with the positive x-axis. Find the direction and magnitude of the resultant force. Round the direction and magnitude to the nearest whole number.
A. Direction: 4°; magnitude: 65 lb
B. Direction: 29°; magnitude: 51 lb
C. Direction: 40°; magnitude: 47 lb
D. Direction: 51°; magnitude: 51 lb
Answer: B
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Solve.Tom Quig traveled 240 miles east of St. Louis. For most of the trip he averaged 70 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
A. 50 miles B. 30 miles C. 25 miles D. 40 miles
Solve the inequality.
?
?
A. 
B. 
C. 
D. 
E. 
Write the decimal as a fraction or mixed number in lowest terms.4.6
A. 
B. 
C. 4
D. 1
Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 
, y = 
; 
B. x = - 
, y = - 
; 
C. x = 
, y = - 
; 
D. not applicable