Solve the logarithmic equation.ln x = 7Give your answer in exact form.

A. 7e
B. e7
C. ln 7
D. 10,000,000

Answer: B

Mathematics

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What is f2 in the circuit below when R1 = 1 Kê, R2 = 4 Kê, C1 = 0.1 æF, C2 = 700 pF, and E = 20 V?


a. 390 KHz
b. 284 KHz
c. 169 KHz
d. 71 KHz
e. 57 KHz

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Mathematics

Use the graph to determine the equation of the ellipse.

A.  +  = 1
B. 5x2 + 8y2 = 1
C.  +  = 1
D. 25x2 + 64y2 = 1

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Mathematics

Solve the problem.A piece of cable which is  m long is to be cut into pieces  m long. How many pieces will there be? 

A. 32 pieces
B. 24 pieces
C.  piece
D. 6 pieces

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Mathematics

Find the values that make the equation true.[-4  b  -2] + [a  7  c] = [1  -1  -9]

A. a = -3, b = 6, c = -11
B. a = 5, b = -8, c = -7
C. a = - , b = - , c = 
D. a = -5, b = 8, c = 7

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Mathematics