Perform the row operation and find the equivalent system.
Add Equation 1 to Equation 2.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
Mathematics
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Solve the problem.A ramp leading to the entrance of a building is inclined upward at an angle of 9°. A suitcase is to be pulled up the ramp by a handle that makes an angle of 29° with the horizontal. How much force must be applied in the direction of the handle so that the component of the force parallel to the ramp is 50 lbs.?
A. 52.62 lbs B. 46.98 lbs C. 60.90 lbs D. 56.46 lbs
Mathematics
Perform the indicated operations.The intensity of the signal from a radar microwave signal to 10.6 - 35.0j V/m. Write this in exponential form.
A. 33.4e-0.294j B. 36.6e-0.294j C. 33.4e-1.28j D. 36.6e-1.28j
Mathematics
Construct a truth table for the statement.r ? ~(q ? p)
A. 
| T | T | T | F |
T F T T
T F F F
F T T F
F T F T
F F T T
F F F F
B.
| T | T | T | T |
T F T T
T F F T
F T T F
F T F T
F F T T
F F F F
C.
| T | T | T | T |
T F T T
T F F T
F T T F
F T F T
F F T T
F F F T
D.
| T | T | T | T |
T F T F
T F F T
F T T F
F T F T
F F T T
F F F F
Mathematics
Solve the equation for exact solutions.6 cos-1 x = ?
A. 
B. 
C. 
D. 
Mathematics