Exam 2: Functions

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Express the following logarithm as specified. - ln1225\ln 1225 in terms of ln5\ln 5 and ln7\ln 7

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Find the exact function value. - arccsc(2)\operatorname { arccsc } ( - 2 )

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Solve for the angle , where 0 2 - cos2θ=14\cos ^ { 2 } \theta = \frac { 1 } { 4 }

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Express the given quantity in terms of sin x or cos x. - cos(2πx)\cos ( 2 \pi - x )

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Determine if the function is even, odd, or neither. - g(x)=5x7g ( x ) = \left| 5 x ^ { 7 } \right|

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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing. - y=2xy=-2 \sqrt{x}  Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing. - y=-2 \sqrt{x}

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Graph the function. - y=1(x1)2\mathrm { y } = \frac { 1 } { ( \mathrm { x } - 1 ) ^ { 2 } }  Graph the function. - \mathrm { y } = \frac { 1 } { ( \mathrm { x } - 1 ) ^ { 2 } }

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Find the domain and range for the indicated function. - f(x)=6,g(x)=6+xf ( x ) = 6 , \quad g ( x ) = 6 + \sqrt { x } g/f\mathrm { g } / \mathrm { f }

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Use a graph to find an approximate solution to the equation. Round to the nearest thousandth. - 7e4x+4=57 e ^ { 4 x + 4 } = 5

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Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse. -Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse. -

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Graph the function. - f(x)=(15)x+2f ( x ) = \left( \frac { 1 } { 5 } \right) ^ { x } + 2  Graph the function. - f ( x ) = \left( \frac { 1 } { 5 } \right) ^ { x } + 2

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Solve the problem. -The decay of 608 mg of an isotope is given by A A(t)=608e0.019tA ( t ) = 608 e ^ { - 0.019 t } , where t is time in years. Find the amount left after 50 years.

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Find the exact value of the trigonometric function. Do not use a calculator or tables. - sin(5π3)\sin \left( \frac { 5 \pi } { 3 } \right)

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Solve the problem. -Boyle's Law says that volume V\mathrm { V } of a gas at constant temperature increases whenever the pressure P\mathrm { P } decreases, so that V\mathrm { V } and P\mathrm { P } are inversely proportional. If P=14.5lbs/in2\mathrm { P } = 14.5 \mathrm { lbs } / \mathrm { in } ^ { 2 } when V=1100\mathrm { V } = 1100 in 3 , then what is V\mathrm { V } when P=24lbs/\mathrm { P } = 24 \mathrm { lbs } / in 2^ { 2 } ?

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Use the appropriate addition formula to find the exact value of the expression. - tan(7π12)\tan \left( - \frac { 7 \pi } { 12 } \right)

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Solve the problem. -Find the amount of interest earned on the following deposit: $1,000 at 12% compounded annually for 7 years

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Solve the problem. -In the formula A A=Iekt\mathrm { A } = \mathrm { Ie }^{ { kt }} A is the amount of radioactive material remaining from an initial amount I at a given time t and k is a negative constant determined by the nature of the material. A certain radioactive isotope has a Half-life of approximately 1450 years. How many years would be required for a given amount of this isotope to Decay to 60% of that amount?

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One of sin x, cos x, and tan x is given. Find the other two if x lies in the specified interval. - sinx=15,x\sin x = - \frac { 1 } { 5 } , \quad x in [π2,0]\left[ - \frac { \pi } { 2 } , 0 \right]

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Determine an appropriate viewing window for the given function and use it to display its graph. - f(x)=x44x3+14x2+x18f ( x ) = x ^ { 4 } - 4 x ^ { 3 } + 14 x ^ { 2 } + x - 18  Determine an appropriate viewing window for the given function and use it to display its graph. - f ( x ) = x ^ { 4 } - 4 x ^ { 3 } + 14 x ^ { 2 } + x - 18

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Find the domain and range of the inverse of the given function. - f(x)=4.9+1.72xf ( x ) = 4.9 + 1.72 x

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