Evaluate for the given values.x + z; x = 4.6, z = 0.92
A. 11.04
B. 5.52
C. 13.8
D. 3.68
Answer: B
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Solve.Martha can rake the leaves in her yard in 4 hours. Her younger brother can do the job in 5 hours. How long will it take them to do the job if they work together?
A. 20 hr
B. 
hr
C. 5 hr
D. 
hr
The revenue of Virtual Reality, a video-game arcade, is generated at the rate of 
dollars. If the revenue is invested t years from now in a business earning interest at the rate of 14% / year compounded continuously, find the accumulated value of this stream of income at the end of 4 years . Round to the nearest dollar.
?
A. $828,690 B. $824,857 C. $828,682 D. $820,372
Solve the problem using your calculator.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Use linear regression to find a linear function that predicts a student's course grade as a function of the number of hours spent in lab. Number of hours spent in lab Grade (percent) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. y = 44.3 + 0.930x B. y = 1.86 + 88.6x C. y = 0.930 + 44.3x D. y = 88.6 - 1.86x
Solve the problem.The volume of a cylinder varies jointly as the square of the radius and the height. If the volume is 28? cubic inches when the radius is 2 inches and the height is 7 inches, find the volume when the radius is 14 inches and the height is 10 inches. Express the answer in terms of ?.
A. 1965 ? cubic inches B. 1000 ? cubic inches C. 1960 ? cubic inches D. 1953 ? cubic inches