1,063 Answered Questions for the topic Pre-Calculus

01/22/20

Precalc question
A street light is 10 feet above a straight bike path. Olav is bicycling down the path at a rate of 15 MPH. At midnight, Olav is 33 feet from the point on the bike path directly below the street... more
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01/21/20

Math calculus Question
Solve the following applied problem using a system of equations. The sum of three numbers is 35. The second number is twice the first, and the third number is twice the second. What are the numbers?
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01/20/20

How do you memorize the Unit Circle?
The unit circle can be daunting. It is necessary in all higher math classes and I am positive you will have a quiz or test on filling in the X and Y coordinates for each of the angles in the Unit... more
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01/16/20

Find f(a + h) - f(a) for the function. Simplify your answer. f(x) = x^2 − 12x + 5
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Pre Calculus Precalculus Pre Calculus

01/15/20

What would this function be?

Your function should have roots -2, -1, and 2 also must include the point (0,4).
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Pre Calculus Calculus

01/10/20

Help with Calculus!!
A particle moves along the x-axis so that at any time t, measured in seconds, its position is given by s(t) = 4sin(t) - cos(2t), measured in feet. What is the acceleration of the particle at time... more
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Pre Calculus Calculus

01/10/20

Help with Calculus!!
The position of a particle on the x-axis at time t, t > 0, is s(t) = ln(t) with t measured in seconds and s(t) measured in feet. What is the average velocity of the particle for e ≤ t ≤ 2e?... more
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Pre Calculus Calculus

01/10/20

Help with Calculus!!
The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) = 60t - 1.5t2, t seconds after the driver applies the brakes. How many seconds after the... more
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Pre Calculus Calculus

01/10/20

Help with Calculus!!
A particle moves with velocity function v(t) = 3t2 - 4t + 1, with v measured in feet per second and t measured in seconds. Find the acceleration of the particle at time t = 3 seconds. Question... more
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Pre Calculus Precalculus Pre Calculus

01/09/20

Precalc question
Use the cut-point method to find the solution set of the following inequality: (x + 4)(x – 5)(4x + 1) ≥ 0. What are the cut points? -4, 5, 1/4 -4, 5, -1/4 -4, -5, -1/4 -4, -5, 1/4
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Pre Calculus Precalculus Pre Calculus

01/09/20

Precalc question
Write the equation of an ellipse with center (0, 0), vertices (3, 0) and (–3, 0) , and foci (2, 0) and (–2, 0). x^2/5 + y^2/9 = 1 x^2/9 + y^2/4 = 1 x^2/4 + y^2/9 = 1 x^2/9 + y^2/5 = 1
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Pre Calculus Precalculus Pre Calculus

01/09/20

Precalc Question
Given the function f(x) = x3 + 2x2 – 5x – 6, use synthetic division to find the value of f (1). 8 −8 0 2
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Pre Calculus Precalculus Pre Calculus

01/09/20

Precalc question
Find the domain of this function: -5/x+1 {x | x ≠ −5} {x | x ≠ 1} {x | x ≠ −1} all real numbers
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Pre Calculus Precalculus Pre Calculus

01/09/20

Precalc Question
Given the function f(x) = x3 + 2x2 – 5x – 6, use synthetic division to find the value of f (– 2). 4 −4 2 0
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01/08/20

Pre math question
Find the value of a for this series: 3 + 2 + 4/3 +8/9 + 16/27 + ... 2/3 3 3/2 1/3
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01/08/20

Precalculus question
Use this system to find the value of the determinant: 3x + y = 3 x - 2y = 8 –7 5 7 −5
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01/08/20

question of math
What are the roots of f(x) = x4 – 16? 2,2,2i,2i –2, 2, –2i, 2i –2,–2,2,2 2i, 2i, –2i, –2i
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01/08/20

pre math question
The perimeter of a triangle is 26 inches. then two equations can be written as z = 2x and y = x + 2. x = 2z and x = y + 2. x = 2z and y = x + 2.
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01/08/20

calculus question
The perimeter of a triangle is 26 inches. If the longest side is twice as long as the shortest side, and the third side is 2 inches longer than the shortest side. Which algebraic equation would... more
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01/08/20

PreCalculus question
Use the Binomial Theorem to find the coefficient of the fifth term: (2x + 1)^7a. C(7,3)b. C(7,4)c. C(6,5)c. C(7,5)
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01/08/20

Precalculus question
Write f(x) = x3 + 25x in factored form. f(x) =a. (x+25i)(x+1)(x–1)b.(x+25)(x+i)(x–i)c. x(x+5i)(x–5i)d. x(x+5i)(x–5i)
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01/08/20

Precalculus Question
Find a polynomial function with real coefficients that has 1 and 4i as it roots.a. x3+x2+16x + 16b. x3–x2–16x – 16c. x3+x2+16x + 16d. x3–x2–16x + 16
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01/04/20

Precalc question
An isosceles triangle has sides of length x, x and y. In addition, assume the triangle has perimeter 12.(a) Find the rule for a function that computes the area of the triangle as a function of x.... more
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Pre Calculus Math Algebra 1 Precalculus

12/29/19

Write an equation in slope-intercept form for the line that passes through (-3, 5), and is perpendicular to the graph of 5x - 6y = 9
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12/17/19

Precalc question
The populations of termites and spiders in a certain house are growing exponentially. The house contains 100 termites the day you move in. After 4 days, the house contains 200 termites. Three days... more
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