Solve the problem.The decay of 956 mg of an isotope is given by 
where t is time in years. Find the amount left after 33 years.
A. 161 mg
B. 322 mg
C. 925 mg
D. 311 mg
Answer: B
Mathematics
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Restate the equation in slope-intercept form.20x + 2y = 11
A. y = - 10x + 
B. y = 20x - 11
C. y = 10x - 
D. y = 10x + 
Mathematics
Find the slope of the line (if it exists) and the y-intercept (if it exists).3x = 15
A. Slope undefined; y-intercept (0, 5) B. Slope 0; no y-intercept C. Slope undefined; no y-intercept D. Slope 0; y-intercept (0, 5)
Mathematics
Study the examples. The arrows indicate the direction that the given cube has been rotated 90°. Pick the cube illustrating the appropriate rotations.
?
Rotating a cube.
?
?
Rotation: downward, downward
?
?
A. D B. B C. C D. A
Mathematics
Solve by the method of your choice.2x2 + xy - y2 = 3x2 + 2xy + y2 = 3
A. 
B. 
C. 
D. 
Mathematics