Use the counting principle to obtain the answer.A shoe store carried one brand of shoe in 3 styles, 4 sizes, and 4 colors. How many types of shoes were available for this one brand?
A. 36
B. 28
C. 11
D. 48
Answer: D
Mathematics
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Add or subtract horizontally.(2n5 + 4n3 + 3) + (5n5 + 2n3 + 6)
A. 7 + 6n5 + 9n3 B. 8n5 + 4n3 + 10 C. 7n5 + 6n3 + 9 D. 22n8
Mathematics
Identify the equation without applying a rotation of axes.4x2 - 7xy + 2y2 + 4x + 3y + 9 = 0
A. hyperbola B. parabola C. ellipse D. not a conic
Mathematics
Solve the problem.A certain radioactive isotope decays at a rate of 0.275% annually. Determine the half-life of this isotope, to the nearest year.
A. 109 years B. 252 years C. 3 years D. 182 years
Mathematics
Evaluate.-p3, when p = 5
A. 125 B. 15 C. 4 D. -125
Mathematics