15,254 Answered Questions for the topic precalculus
10/13/22
The position (in thousands of feet) of a car driving along a straight road at time t in minutes is given by the function y = s(t) that is pictured below.
The position (in thousands of feet) of a car driving along a straight road at time t in minutes is given by the function y = s(t) that is pictured below.Let v(t) denote the velocity of the car (in...
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Precalculus Math
10/13/22
need help with math
A company buys a new bulldozer for $115600. The company depreciates the bulldozer linearly over its useful life of 24 years. Its salvage value at the end of 24 years is $13600. Depreciation is the...
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Precalculus
10/12/22
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𝐺𝑖𝑣𝑒𝑛 𝑡ℎ𝑒 𝑟𝑎𝑡𝑖𝑜𝑛𝑎𝑙 𝑓𝑢𝑛𝑐𝑡𝑖𝑜𝑛, 𝑟(𝑥) = -2x^2+4x+30/x^2-3x-10a. Rewrite the function in factored and reduced forms.b. Identify the domain, location of the hole, and vertical asymptote.c. Identify the...
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f(x)=9(x+16)^2+13 Find f(3a+9)=
Help...I will give you a 5 star review if you show me how to do this problem.
Precalculus
10/12/22
Will someone please help me with the math question below and show the calculations so I can get a better grip on the concept.
Many doctors rely on the use of intravenous medication administration in order to achieve an immediate response of a particular drug's effects. The concentration, C, in mg/L, of a particular...
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Precalculus
10/12/22
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 3 − x 2 . What are the dimensions of such a rectangle with the greatest possible area?
Width = Height =
Precalculus
10/12/22
Trigonometry question
As a dolphin swims along the side of a curise ship, it jumps to a height of four meters about the water surface and dives to a depth of four meters below the surface. It does this in a regular...
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Precalculus
10/12/22
Will someone please help me with the math question below and show the calculations so I can get a better grip on the concept.
Many doctors rely on the use of intravenous medication administration in order to achieve an immediate response of a particular drug's effects. The concentration, C, in mg/L, of a particular...
more
Given the one-to-one function f(x)= 7x - 2, find it's inverse function.
(A.) Given the one-to-one function f(x)= 7x - 2, find it's inverse function.Which is f ^ -1(x)= 1/7x - 2/7(B.) The graphs of f and f^ -1 are symmetric with respect to the line defined byy = _______
Given the one-to-one function f(x)= 7x - 2, find it's inverse function. The graphs of f and f^ -1 are symmetric with respect to the line defined by
(A.) Given the one-to-one function f(x)= 7x - 2, find it's inverse function.Which is f ^ -1(x)= 1/7x - 2/7(B.) The graphs of f and f^ -1 are symmetric with respect to the line defined byy = _______
Precalculus
10/12/22
Find the equation x2 + y2 + Dx + Ey + F = 0
Find the equation x2 + y2 + Dx + Ey + F = 0 of the circle that passes through the points. To verify your result, use a graphing utility to plot the points and graph the circle.(0, 0), (0, −4), (5, 0)
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Solve each of the following equations using the Extended Square Root Property.
Solve each of the following equations using the Extended Square Root Property.1. 8√x+7=16x= _____________2. √7x+4−3=0x= _____________3. 8√5x−7=16x= _____________
Solve each of the following equations using the Extended Square Root Property
Solve each of the following equations using the Extended Square Root Property.1. 8√x+7 = 16x= _____________2. √7x+4 −3 = 0x= _____________3. 8√5x−7 = 16x= _____________
Precalculus
10/11/22
f(x) = x + 5 (x − 1)(x − 4) f(x) > 0 when x is in ?
Precalculus Calculus
10/11/22
An electrical circuit switches instantaneously from a 8 volt battery to a 11 volt battery 7 seconds after being turned on.
An electrical circuit switches instantaneously from a 8 volt battery to a 11 volt battery 7 seconds after being turned on. Sketch on a sheet of paper a graph the battery voltage against time. Then...
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Precalculus Calculus
10/11/22
A tank contains 5000 L of pure water. Brine that contains 30 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes can be s
A tank contains 5000 L of pure water. Brine that contains 30 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes can be shown to be...
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Precalculus Calculus
10/11/22
Suppose that in order to remove x% of the pollution from an oil spill, it costs C thousands of dollars where C(x)=9x100−x. How much does it cost to remove 25% of the pollution? thousand dollars.
Suppose that in order to remove x% of the pollution from an oil spill, it costs C thousands of dollars where C(x)=9x/(100−x).How much does it cost to remove 25% of the pollution? ______ thousand...
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Precalculus
10/11/22
Find the equation of the ellipse with the following conditions below. Explain completely the process of arriving at your answer.
a. center: (1, 4); a = 2c; vertices: (1, 0), (1, 8)d. vertices: (5, 0), (5, 12); endpoints of the minor axis: (1, 6), (9, 6) e. foci at (0 , ±3) ; x-intercepts are ±2
Precalculus
10/11/22
An object moving vertically is at the given heights at the specified times. Find the position equation s = 1 2 at2 + v0t + s0 for the object.
An object moving vertically is at the given heights at the specified times. Find the position equation s=1/2at2 + v0t + s0 for the object.At t = 1 second, s = 148 feetAt t = 2...
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Precalculus
10/11/22
Find the equation y = ax2 + bx + c of the parabola that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola.
Find the equation y = ax2 + bx + c of the parabola that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola.(1, 4), (2, 2), (3, −6)
Precalculus
10/11/22
Zero's of polynomial functions
Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the...
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Precalculus
10/10/22
Find the polynomial function with real coefficients that has the given zeros
4, -2i
Precalculus
10/10/22
Find the polynomial function f with real coefficients that has the given degree, zeros, and solution
Degree: 4. Zeros: -3, 1, i. Solution point: f(0) = -6.
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