Find the LCD.

A. -6(x - 2)(x + 4)
B. -6(x + 2)(x - 4)
C. -6(x - 2)(x - 4)
D. -6(x + 2)(x + 4)


Answer: C

Mathematics

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Compute the distance between the two points.(2, -6) and (6, -4)

A. 12 
B. 2
C. 12
D. 2 

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Find the missing factor.-2x8y8 = xy ? ?

A. -2x9y9 B. x9y9 C. -2x7y7 D. x7y7

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Solve the problem.5 + 5 × 3 + 5 × 32 + 5 × 33 + . . . + 5 × 378 =

A. 5 × (378 - 1) B. 2.5 × (378 - 1) C. 2.5 × (379 - 1) D. 5 × (379 - 1) E. none of these

Mathematics

Solve by using the Superposition Theorem:


R1 = 4.7 Kê, R2 = 3.3 Kê, R3 = 5.1 Kê, E1 = 40 V, and E1 = 20 V. What is the value of I3?
a. 5.971 mA
b. 4.011 mA
c. 3.621 mA
d. 1.649 mA
e. 0.148 mA

Mathematics