Evaluate the function at the indicated value of x. Round your result to three decimal places. Function: f(x) = 0.5x Value: x = 1.7

QUESTION 1

• Evaluate the function at the indicated value of x.  Round your result to three decimal places.
Function: f(x) = 0.5^x   Value: x = 1.7

		-0.308
		1.7
		0.308
		0.5
		-1.7

5 points  

QUESTION 2

• Match the graph with its exponential function.

		y = 2-x – 3
		y = -2x + 3
		y = 2x + 3
		y = 2x – 3
		y = -2x – 3

5 points  

QUESTION 3

• Select the graph of the function.
f(x) = 5^x-1

5 points  

QUESTION 4

• Evaluate the function at the indicated value of x.  Round your result to three decimal places.
Function: f(x) = 500e^05x    Value: x=17

		1169.823
		1369.823
		1569.823
		1269.823
		1469.823

5 points  

QUESTION 5

• Use the One-to-One property to solve the equation for x.
e^3x+5 = 3⁶

		x = –1/3
		x2 = 6
		x = -3
		x = 1/3
		x = 3

5 points  

QUESTION 6

• Write the logarithmic equation in exponential form.
log₈ 64 = 2

		648 = 2
		82 = 16
		82 = 88
		82 = 64
		864 = 2

5 points  

QUESTION 7

• Write the logarithmic equation in exponential form.
log₇ 343 = 3

		7343 = 2
		73 = 77
		73 = 343
		73 = 14
		3437 = 2

5 points  

QUESTION 8

• Write the exponential equation in logarithmic form.
4³ = 64

		log64 4 = 3
		log4 64 = 3
		log4 64 = -3
		log4 3 = 64
		log4 64 = 1/3

5 points  

QUESTION 9

• Use the properties of logarithms to simplify the expression.
log₂₀20⁹

		0
		–1/9
		1/9
		-9
		9

5 points  

QUESTION 10

• Use the One-to-One property to solve the equation for x.
log₂(x+4) = log₂ 20

		19
		17
		18
		16
		20

5 points  

QUESTION 11

• Find the exact value of the logarithmic expression.
log₆ 36

		2
		6
		36
		-2
		none of these

5 points  

QUESTION 12

• Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms.  (Assume all variables are positive.)
log₃ 9x

		log3 9 x log3 x
		log3 9 + log3 x
		log3 9 log3
		none of these

5 points  

QUESTION 13

• Condense the expression to a logarithm of a single quantity. 
log_x– 2log_y + 3log_z

5 points  

QUESTION 14

• Evaluate the logarithm using the change-of-base formula.  Round your result to three decimal places.
log₄ 9

		1.585
		5.585
		3.585
		4.585
		2.585

5 points  

QUESTION 15

• Determine whether the given x-value is a solution (or an approximate solution) of the equation.
4^2x-7 = 16
x = 5

		no
		yes

5 points  

QUESTION 16

• Solve for x.
3^x = 81

		7
		3
		4
		-4
		-3

5 points  

QUESTION 17

• Solve the exponential equation algebraically.  Approximate the resulte to three decimal places.
e^5x = e^x2-14

		-7, -2
		7, -2
		5, -14
		7, 2
		-7, 2

5 points  

QUESTION 18

• Solve the logarithmic equation algebraically.  Approximate the result to three decimal places.
log₃(6x-8) = log₃(5x + 10)

		18
		20
		17
		19
		-2

5 points  

QUESTION 19

• Find the magnitude R of each earthquake of intensity I (let I₀=1).
I = 19000

		3.28
		5.28
		4.28
		2.38
		6.28

5 points  

QUESTION 20

• $2500 is invested in an account at interest rate r, compounded continuously.  Find the time required for the amount to double.  (Approximate the result to two decimal places.)
r = 0.0570

		13.16 years
		10.16 years
		11.16 years
		12.16 years
		14.16 years

5 points  

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