15,254 Answered Questions for the topic precalculus

Precalculus

12/07/22

Solve 2cos^2(x)-5cos(x)+3=0 for all solutions
x = ____ where k = ____
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Precalculus

12/07/22

Solve 2sin^2(t)+sin(t)-1=0 for all solutions
t = ____ +2knGive your answers as exact values in a list separated by commas.
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Precalculus

12/07/22

Solve 5sin((π/3)x)=3 for the four smallest positive solutions
x =Give your answers accurate to at least two decimal places, as a list separated by commas.
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Precalculus

12/07/22

3cos(6x)=2 for the three smallest positive solutions
Give your answers accurate to at least two decimal places, as a list separated by commas.
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Precalculus

12/07/22

What is x^2-4x+12y-8=0 as a parabola
Write as a parabola
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Precalculus

12/07/22

Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2𝜋). (Enter your answers as a comma-separated list.) 2 cos2(𝜃) = 2 − cos(2𝜃)
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Precalculus Math

12/07/22

If p varies jointly as t and r and inversely as q, then find an equation for p if p=4 when t=6,r=5 , and q=-5.
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Precalculus Math Sat Math Act Math

12/06/22

Please Help! Write the equation for the ellipses described below:
Write the equation for an ellipse with vertices at (2,-5), (2,3); Foci: (2,-4), (2,2)Write the equation for another ellipse with Major axis vertices: (2,2), (−4,2); Minor axis vertices: (−1,1), (−1,3) more
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Precalculus

12/06/22

Determining an equation

Use the given information about the graph of an ellipse to determine its equation.center at the origin, symmetric with respect to the x- and y-axes, focus at (4, 0), and point on graph (0, 3)
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Precalculus

12/06/22

Solve cos^2(x)=-7sin(x) for all solutions 0 ≤ x < 2π
x =
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Precalculus

12/06/22

4cos^2(t)-11cos(t)-3=0 for all solutions 0 ≤ t < 2π
t =
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Precalculus

12/06/22

8sin^2(w)-6sin(w)+1 = 0 for all solutions 0 ≤ w < 2π
w =
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Precalculus

12/06/22

2cos^2(w)-3cos(w)+1=0 for all solutions 0 ≤ w < 2π
w =
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Precalculus

12/05/22

Solve for t, 0 ≤ t < 2π
8sin(t)cos(t) = 2cos(t)t=
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Precalculus Geometry Trigonometry

12/05/22

Equilateral Triangle and Parallel Lines
Points A, B, and C lie on the parallel lines x −y√3 = 2, x −y√3 = 0, and x −y√3 = -8, respectively, and form an equilateral triangle ABC. Calculate the length of triangle ABC's side.
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Precalculus

12/05/22

A hamster running in a wheel of radius 15 cm spins the wheel one revolution in 18 seconds.
a) What is the angular velocity of the wheel? (in radians/sec) b) At what linear velocity is the hamster running? (in cm/sec)  
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Precalculus

12/05/22

A hamster running in a wheel of radius 10 cm spins the wheel one revolution in 11 seconds.
a) What is the angular velocity of the wheel? (in radians/sec) b) At what linear velocity is the hamster running? (in cm/sec)  
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Precalculus

12/05/22

If csc(x) = 7/2, (in quadrant I), find...
cos(2x) =
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Precalculus Math

12/05/22

what is the answer ?
Brian places a bottle of water inside a cooler. As the water cools, its temperature Ct in degrees Celsius is given by the following function, where t is the number of minutes since the bottle was... more
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Precalculus Math Algebra 1 Algebra 2

12/05/22

Given that f (x) = 2x + 1 and g(x) = 6 - x, find the following. If necessary, use a 0 in the denominator!
Given that f (x) = 2x + 1 and g(x) = 6 - x, find the following. If necessary, use a 0 in the denominator!a. ( f + g) (2) = ____________b. ( f - g) (-5) = ___________c. ( g - f) (4) =... more
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12/05/22

At the local bunny-hop, Mr. Meyering jumps 20 inches on his first jump and then 10 inches with his second jump. If the distances form a geometric sequence,
At the local bunny-hop, Mr. Meyering jumps 20 inches on his first jump and then 10 inches with his second jump. If the distances form a geometric sequence, what is the total distance Mr. Meyering... more
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Precalculus Calculus

12/04/22

evaluate the following composite expressions please provide A sketch of the right triangle related to the inside expression. easily understandable explanation
cot(arcsec(-5/3))
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Precalculus Calculus

12/04/22

evaluate the following composite expressions please provide A sketch of the right triangle related to the inside expression. easily understandable explanation
sec(arctan(-3))
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Precalculus Math Calculus

12/04/22

evaluate the following composite expressions please provide A sketch of the right triangle related to the inside expression. easily understandable explanation
arctan(tan(5∏/4))
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Precalculus

12/04/22

Math Question Pre calculus

Find half-life of radioactive element, which decays according to the function A(t)= A_0e^-0.0306t, where r is the time of years.
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