Sketch the graph of the equation in the rectangular coordinate system in three dimensions.9x + 12y + 18z = 36
What will be an ideal response?
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Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A grade? Round your answer to the nearest whole number.
A. 80 B. 90 C. 79 D. 82
Find the equilibrium solution of the equation. Use a sketch of the direction field for 
to determine whether the equilibrium is stable.y'(t) = 2y - 19
A. y = 
; stable
B. y = 
; unstable
C. y = 21; stable
D. y = 
; unstable
Solve the problem.The following data represents the average monthly minimum temperature for a certain city in California. 
Draw a scatter diagram of the data for one period. Find a sinusoidal function of the form 
that fits the data. Draw the sinusoidal function on the scatter diagram. Use a graphing utility to find the sinusoidal function of best fit. Draw the sinusoidal function of best fit on the scatter diagram.
What will be an ideal response?
Solve the system graphically.x + 7y = 77x - 4y = -4
A. (1, 0) B. (0, 1) C. (1, 1) D. (0, 0)