Multiply.(-6x2)(-2x3)

A. -8x6
B. -12x6
C. -8x5
D. 12x5


Answer: D

Mathematics

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Solve the problem.Suppose that z varies jointly with x and y and that z = 343 when x = 7 and  Find the constant of proportionality k. Then, find z when x = 7 and y = 8.

A. k = 2.9; z = 162.4
B. k = 33,614; z = 
C. k = 3.9; z = 218.4
D. k = 3.5; z = 196

Mathematics

Write the expression in the standard form a + bi.i12

A. -1 B. i C. 1 D. -i

Mathematics

Solve the problem.At the first tri-city meeting, there were 8 people from town A, 7 people from town B, and 5 people from town C. If the council consists of 5 people, find the probability that 3 are from town A and 2 are from town B.

A.
B.
C.
D.

Mathematics

Write the first four terms of the sequence.an = 

A. a1 = 1, a2 = , a3 = , a4 = 
B. a1 = , a2 = , a3 = , a4 = 
C. a1 = 1, a2 = , a3 = , a4 = 
D. a1 = 3, a2 = , a3 = , a4 = 

Mathematics