Solve the system of equations by finding the reduced row echelon form for the augmented matrix.3x + 2y + z = 42x - 3y - z = 5
A. 
B. 
C. 
D. 
Answer: D
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Write the number in decimal notation without the use of exponents.6.3795 x 104
A. 6379.5 B. 637,950 C. 255.18 D. 63,795
Solve the given applied problems involving variation.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 40 mph with a surface area of 37 ft2 experiences a drag of 192.4 N (Newtons), how fast must a car with 40 ft2 of surface area travel in order to experience a drag force of 291.2 N?
A. 53 mph B. 58 mph C. 61 mph D. 56 mph
Provide an appropriate response.A printing press can produce 1 day's newspaper in 4 hours. A higher-speed machine can do 1 day's newspaper in 2 hours. How much time would it take both presses to do the one job?
A. 
hour
B. 1
hours
C. 3 hours
D. 6 hours
Find the function value.Find P(-2): P(x) = -3x3 - 9x2 + 2x - 9
A. 4 B. 55 C. -25 D. -65