Multiply.(7a)(3a2)

A. 21a4
B. 10a3
C. 7a + 3a2
D. 21a3


Answer: D

Mathematics

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R1 = 2.2 Kê, R2 = 3.3 Kê, RL = 1.2 Kê, and E = 20 V. Find the value of VL.


a. 1.20 V
b. 3.29 V
c. 7.06 V
d. 12.39 V
e. 16.67 V

Mathematics

Provide an appropriate response.Find the magnitude of the vector in standard position with end point (8.4, 2.7).

A. 8.8 B. 8.0 C. 11.1 D. 4.7

Mathematics

Use the graph to evaluate the expression.Find (f ? g)(5) and (g ? f)(2).

A. (f ? g)(5) = 52; (g ? f)(2) = 1 B. (f ? g)(5) = 2; (g ? f)(2) = 1 C. (f ? g)(5) = 52; (g ? f)(2) = 9 D. (f ? g)(5) = 28; (g ? f)(2) = -15

Mathematics

Divide.Divide -15 by 0.05

A. -30 B. -3 C. -300 D. -0.3

Mathematics