Find the part.81% of 491 meters
A. 3977.1 meters
B. 39.77 meters
C. 39,771 meters
D. 397.71 meters
Answer: D
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Find the partial derivative of the dependent variable or function with respect to each of the independent variables.f(x, y) = x3 - 5x2y - 4xy3
A. 
= 3x2 + 2xy - 4y3; 
= -5x2 + 3xy2
B. 
= 3x2; 
= -5x2 - 12xy2
C. 
= 3x2 - 10xy - 4y3; 
= -5x2 - 12xy2
D. 
= x2 - 5xy - 4y3; 
= -5x2 - 4xy2
Determine the slope and the x- and y-intercepts of the line.y = 3 - x
A. Slope is 1 y-intercept is (0, -3) x-intercept is (3, 0) B. Slope is 1 y-intercept is (-3, 0) x-intercept is (0, 3) C. Slope is -1 y-intercept is (3, 0) x-intercept is (0, -3) D. Slope is -1 y-intercept is (0, 3) x-intercept is (-3, 0)
If 
, write the expression 
in terms of just x.
What will be an ideal response?
Solve.The formula H = 
(215 - a) gives the target heart rate, H, in beats per minute, on a stress test for a person of age a. Use this formula to find the target heart rate for a 25-year-old.
A. 124 beats per minute B. 104 beats per minute C. 114 beats per minute D. 109 beats per minute