Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (-4, 4), perpendicular to y = - 
x - 
A. y = 
x + 
B. y = 
x + 
C. y = 
x - 
D. y = - 
x - 
Answer: B
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Solve the right triangle.A = 79° 32', c = 264 m , C = 90°Round side lengths to two decimal places, if necessary.
A. B = 10° 28', a = 259.81 m, b = 54.96 m B. B = 10° 32', a = 260.81 m, b = 40.96 m C. B = 11° 18', a = 259.81 m, b = 47.96 m D. B = 10° 28', a = 259.61 m, b = 47.96 m
Solve.The process by which a gas escapes from a container with a small puncture is called "effusion". Under identical conditions, gases with relatively small particle masses effuse more rapidly than gases with larger particle masses. The relative rate of effusion of helium (He) and nitrogen (N2) can be computed using: relative rate = 
= 
,where MHe is the mass of the helium particles and MN2 is the mass of the nitrogen particles. Assuming MHe = 4 and MN2 = 28 (arbitrary units), find the exact value of the relative rate of effusion.
A. 
B. 7
C. 
D. 
Solve the problem.A classical music concert is to consist of 5 cello pieces, 3 choral works, and 3 pieces for piano. In how many ways can the program be arranged if a piano piece must come first?
A. 120,960 B. 3,628,800 C. 39,916,800 D. 10,886,400
Determine analytically (without using a graph) whether the function is one-to-one.f(x) = -0.6x2 + 2x + 4
A. one-to-one B. not one-to-one