15,254 Answered Questions for the topic precalculus

Precalculus Math Trigonometry

04/11/23

Graphs of the Sine and Cosine Functions

Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 93 and 67... more
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Precalculus

04/11/23

pre calc homework question
Police use the formula:v=√20Lto estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphalt road. At the scene of... more
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Precalculus

04/11/23

Help with precalculus work
(I was able to solve some of the equation. (Those answers are in bold.) I just need some help finishing the equation.)There should be 4 solutions for B but I can only find 2 and I'm just completely... more
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Precalculus

04/11/23

Solve 4 cos (5x)=3 for the smallest three positive solutions.
How would I solve this? If positive, please explain how you found your answer.
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Precalculus

04/11/23

Solve 6 sin (𝝅/2 ×)=3 for the four smallest positive solutions
I've been stuck on this equation for a while. Anyone know how to solve this? If possible, please explain how you solved it.
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Precalculus

04/11/23

Calculus homework help

A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find the velocity and speed when t = 5. (Round your answers totwo decimal... more
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Precalculus Math Biology Calculus

04/11/23

Static Equilibrium

Please help to answer the following question - A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 300 N and is 4.50 m long. What is the tension... more
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Precalculus Math Biology Calculus

04/11/23

Collisions in Real Life

Please help me answer the following question, please provide steps, and work. Question: In the movie, The Matrix Reloaded, Neo (80 kg) jumps toward Agent Smith (600 kg) who jumps towards Neo. When... more
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Precalculus Algebra 2 Calculus

04/11/23

How do you find the polynomial given the following information?
x=-3-5i, x=4+√6, and f(1)=246When I tried to solve this problem, I got x^4-2x^3+2x^2-176x+544 but when I checked it, it was incorrect. Thank you for your help in advance!
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Precalculus Algebra 2 Calculus

04/11/23

Find the equation of the polynomial given the following information:
x=3, x=i√7 and f(2)=33I tried to solve it and got x^3-3x^2+7x-21, however it was wrong. Thank you in advance!
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Precalculus

04/10/23

pre calc homework question

Police use the formula:v=20Lto estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks when suddenly braking on a dry, asphalt road. At the scene of an... more
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Precalculus

04/09/23

pre calc homework help

f(x)= 3x^3-8x-26/3x^2+11x+10 the function has:  A y intercept at the point    2) x intercepts at the point(s)    3) Vertical asymptotes at x =    4) Horizontal asymptote at  y =
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Precalculus

04/09/23

pre calc homework help
Use polynomial long division to divide x^3-3x^2-4x-1 by x+1 Rewrite x^3-3x^2-4x-1 by x+1 in the form q(x)Xd(x)+r(x) x^3-3x^2-4x-1=____X____+_____
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Precalculus

04/09/23

pre calc assignment help
8x^2-12x-37/4x+6the equation of the vertical vertical asymptote is X=the equation of the slant asymptote is y=
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Precalculus

04/09/23

need help with pre calc hw
Find all zeros of 4x^3-20x^2+31x-21Enter the zeros separated by commas. Enter exact value, not decimal approximations please
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Precalculus Math Calculus

04/09/23

Phillip, the proprietor of a vineyard, estimates that the first 9500 bottles of wine produced this season will fetch a profit of $3 per bottle.
Assuming at least 9500 bottles of wine are produced and sold, what is the maximum profit? (Round your answer correct to the nearest cent.)What would be the profit/bottle in this case? (Round the... more
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Precalculus

04/09/23

pre calc homework question on liters

Tank A initially contains 60 liters of water with 1800 grams of salt dissolved in it. Tank B contains a saltwater solution with a concentration of 50 grams per liter. A valve is opened, and the... more
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Precalculus

04/09/23

Write an equation for a rational function with: Vertical asymptotes at x = -5 and x = -3 x intercepts at x = -2 and x = 3 y intercept at 9
Write an equation for a rational function with:Vertical asymptotes at x = -5 and x = -3x intercepts at x = -2 and x = 3y intercept at 9y= ?
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Precalculus

04/09/23

Write an equation for a rational function with: Vertical asymptotes at x = 4 and x = -2 x intercepts at x = -3 and x = 6 Horizontal asymptote at y = 6
Write an equation for a rational function with:Vertical asymptotes at x = 4 and x = -2x intercepts at x = -3 and x = 6Horizontal asymptote at y = 6
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Precalculus

04/07/23

PreCalculus 12thgrade
You need a 35% alcohol solution. On hand, you have a 600 mL of a 30% alcohol mixture. You also have 95% alcohol mixture. How much of the 95% mixture will you need to add to obtain the desired... more
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Precalculus

04/04/23

The question is shown below.
At an amusement park, the pendulum ride's movement from its starting position in meters can be represented by the equation  If x represents time measured in seconds since the ride first began, at... more
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Precalculus

04/04/23

Find all zeros of P, real and complex.
P(x) = x3 + x2 + 2x(Enter your answers as a comma-separated list. Enter all answers including repetitions.)
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Precalculus

04/04/23

Find all zeros of P, real and complex.
P(x) = x3 + x2 + 2x(Enter your answers as a comma-separated list. Enter all answers including repetitions.)
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Precalculus

04/04/23

Find a polynomial with integer coefficients that satisfies the given conditions.

R has degree 4 and zeros 5 − 5i and 1, with 1 a zero of multiplicity 2.
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Precalculus

04/04/23

Given that sin(a) = 3/4 and cos(b) = − 1/5 , with a and b both in the interval (𝜋 2 , 𝜋) , find the exact values of sin(a + b) and cos(a − b).
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