Newest precalculus Questions | Wyzant Ask An Expert

15,254 Answered Questions for the topic precalculus

07/21/25

Solve for the equations

I have no idea what to do here. If g(x) = 5x2+7 and f(x)= x2+1, then what is g(f(x)) and f(g(x))? What is the value of both equations if x =2?

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Precalculus Algebra 2 Calculus

06/25/25

Odd result when considering x³ - y³ = 91

By inspection one may notice that x = 3, y = -4 is a solution & so must be x = 4, y = -3. If this equation defines a cubic, then with 2 real roots there must be 1 more real solution. To find it... more

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Precalculus Algebra 2

06/19/25

What is a complex number?

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Precalculus Algebra 2 Discrete Math

06/09/25

Counting certain partitions

Consider the partition of an integer into the sum of some integers:n = n1 + n2 + ... + nr, with each ni ≥ 1. How many such partitions are there? An equivalent question: how many integer solutions... more

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Precalculus Algebra 2 Calculus Discrete Math

06/08/25

Monotone subsequence of an infinite sequence

Does every infinite sequence have a monotone subsequce? Here by "monotone" we may either (non-strictly) increasing or decreading. More precisely, given a sequence (an)n≥1, does there exist a... more

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Precalculus

05/29/25

Integrations Unit Assessment

If the area under a curve is given by x³/3 - x²/2 - 2x, find the exact area between this curve, the x-axis and its x-intercepts.

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Precalculus

05/28/25

A new car is purchased for 17900 dollars. The value of the car depreciates at 12.25% per year. What will the value of the car be, to the nearest cent, after 10 years?

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Precalculus

05/27/25

when will my recorded sessions become available?

I have had 2 lessons in the last 2 days. When will they be available?

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Precalculus Algebra 1 Algebra 2

05/26/25

Solve the quadratic equation by completing the square

Solve by completing the square. 2x2+4x-2=0

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Precalculus Biology Chemistry Geology

05/23/25

New to Wyzant Tutoring - Looking for new clients!

I have long been a proponent of a connection-driven tutoring approach—one that supports students not only academically, but also socially and emotionally. Over my years working as a peer tutor,... more

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Precalculus Math Algebra 2 Calculus

05/23/25

Composition of Functions: Given f(x)= 1/(x-2) and g(x)= (3/x)+2; find f(g(x))

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Precalculus Math Algebra 2 Calculus

05/23/25

Quotient Differences: Given f(x) = 5x^2 +2x, find [f(x+h)-f(x)] / h

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Precalculus Math Algebra 2 Calculus

05/23/25

The polynomial of degree 5, P(x), has leading coefficient 1, roots of multiplicity 2 at x=2 and x=0, and a root of multiplicity 1 at x=-2. Find a possible formula for P(x)

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Answers •4

Precalculus Algebra 1 Algebra 2 Calculus

04/26/25

Find equation of tangent line of the function f(x)= (x-7)/(x-1) at (3,-1)

Find the equation of the tangent line of the rational function, f(x)= (x-7)/(x-1) at the point (3,-1). Keep as point-slope form.

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Answers •5

Precalculus

04/01/25

The magnitude and Direction of two forces acting on an Object

The magnitude and direction of two forces acting on an object are 35 pounds, N45E, and 55 pounds, S30E, respectively. Find the magnitude, to the nearest hundredth of a pound, and the direction... more

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Precalculus Math Calculus Physics

03/29/25

Ordinary Differential Equations question

As the engineer in charge of the calibration software, you are to create the correct algorithm to analyzethe desk on which the printer is. Let us focus on some part of this. Assume the machine is... more

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Precalculus

03/06/25

Write a polynomial function of minimum degree in standard form with real coefficients whose zeros and their multiplicities include those listed.3 (multiplicity 2) 5+ i (multiplicity 1)

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Precalculus

03/02/25

How do I give a recommendation of a tutor to my friend?

How do I give a link to my friend who needs a tutor? I would like to request a tutor that I have.

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Answers •1

Precalculus Calculus

03/01/25

The concentration of a drug in the bloodstream

The concentration of a drug in the bloodstream tt hours after injection is given by the function C(t)=0.7te−1.5t,Ct=0.7te-1.5t, where the concentration is measured in milligrams/meter. How fast is... more

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Precalculus Algebra 2 Trigonometry

02/19/25

How can quadratic functions be used to model projectile motion?

Consider the following example below:A soccer player kicks a ball into the air from a height of 2 meters with an initial vertical velocity of 15 m/s. The height of the ball after t seconds is given... more

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