Newest precalculus Questions | Wyzant Ask An Expert

09/29/22

A particle moves along the x-axis, its position given by x(t) = t/(1 + t^2), t >= 0, where t is measured in seconds and x in meters.

A particle moves along the x-axis, its position given by , where t is measured in seconds and x in meters.(a) Find the acceleration at time t.(b) When is the particle speeding up? (c) When is the... more

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Precalculus

09/29/22

Radian and Degree Measure

Mike just hopped on the edge of a merry-go-round. What are his linear and angular speeds if the diameter of the merry-go-round is 99 feet and it takes 44 seconds for it to make a complete... more

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Precalculus

09/29/22

Math jdbdid eirhrh

A university had enrollments of 40,563 students in 2000 and 44,115 students in 2008 at its main campus.(a) Assuming the enrollment growth is linear, find a linear model that gives the enrollment in... more

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Precalculus

09/29/22

Math Question regarding length

The length of a new rectangular playing field is 2 yards longer than double the width. If the perimeter of the rectangular playing field is 358 yards, what are it's dimension's? Length and Width

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Precalculus

09/29/22

linear function

Jacqueline leaves city A at 2:00 p.m. and drives at a constant speed, traveling west on I-90. She passes city B, 40 mi from city A, at 2:50 p.m.a) Find a linear function d that models the distance... more

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Precalculus Math

09/29/22

Write an equation for a line perpendicular to y = − 3 x + 5 and passing through the point (-3,1).

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Precalculus

09/29/22

Radian and Degree Measure

Given a circle of radius 11m, find the length of the arc subtended by a central angle of 120°. Round decimals to the nearest hundredth.___m

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Precalculus

09/28/22

Approximate the following logarithms using the properties of logarithms given

Approximate the following logarithms using the properties of logarithms givenlog𝑏(2)=0.236log𝑏(3)=0.375log𝑏(5)=0.549log𝑏⁡(12) = ??lo𝑏⁡(50) = ??logb𝑏(5𝑏^2) = ??

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Precalculus

09/28/22

Find an exponential model for the population (in millions of people) at any time 𝑡t, in years after 1980.

The population of a region is growing exponentially. There were 35 million people in 1980 (when 𝑡=0t=0) and 65 million people in 1990. Find an exponential model for the population (in millions of... more

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Precalculus

09/28/22

Rewriting The Expression and Solving For Variables

Use the Laws of logarithms to rewrite the expression in a form with no logarithm of a product, quotient or power. log(𝑥^14𝑦^19 / 𝑧^5)After rewriting we have log(𝑥^14𝑦^19 /... more

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Precalculus

09/28/22

A population, 𝑃(𝑡) (in millions) in year 𝑡, increases exponentially. Suppose 𝑃(6)=21 and 𝑃(15)=31.

A population, 𝑃(𝑡)P(t) (in millions) in year 𝑡t, increases exponentially. Suppose 𝑃(6)=21 P(6)=21 and 𝑃(15)=31 P(15)=31. a) Find a formula for the population in the form 𝑃(𝑡)=𝑎𝑏𝑡P(t)=abt. Enter... more

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Precalculus Math

09/28/22

Write an equation for a line perpendicular to y = 3 x − 1 and passing through the point (9,1).

y=?

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Precalculus

09/28/22

What is the net change between (0,6) and (5,5)?

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Precalculus

09/28/22

a function is given

g(x)=2/x+7; x=0,x=h determine the net change and average rate of change between the given values of the variable.

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Precalculus

09/28/22

a function is given.

g(x)=6/x; x=1, x=a determine the net change between the given values of the variable.

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Precalculus

09/28/22

Solve: | 3 x + 4 | < 8 Give your answer as an interval.

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Precalculus

09/28/22

Calculus help with finding explicit expression

The population P of city A from 2010 is given by the table. Year 2010 2011 2012 2013 Population 100,500 82,300 67,400 55,200 This seems to follow an exponential decay model P(t) = P0e kt, where t... more

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Precalculus

09/28/22

Lesson: 7.1 Radian and Degree Measure

Given a circle of radius 11m, find the length of the arc subtended by a central angle of 120°. Round decimals to the nearest hundredth.

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Precalculus

09/27/22

write an equation for the shape of f(x)=x^(3) but moved two units to the left, five units up, and reflected in the y-axis

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Answers •2

Precalculus

09/27/22

Find a formula for a function f(x) such that f(3) = 0; F(x) is even; f has horizontal asymptote at y=2, f has vertical asymptotes at x=4 & x=-4; f(0) = 1

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Answers •1

Precalculus Algebra 2 Calculus Statistics

09/27/22

What does n=? (statistics)

A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 2 percentage points with 90%... more

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Precalculus Algebra 2 Calculus

09/26/22

Precalc question

f(x) = √2x^3-32x. (note the all of the terms are under a square root)(b) graphing the function in the radicand and determining intervals on the x-axis for which the radicand is... more

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Precalculus Math

09/26/22

I'm a little stuck on this problem and I need some help

A landscaper plants circular flowerbeds in square plots of land of various sizes. Once the flowerbed is built she fills in the uncovered land with sod. As a result, the amount of sod needed is... more

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Precalculus Trigonometry

09/26/22

triple angle identity

sin(3x) = 3sin(x) - 4sin3(x)which is also equal tosin3(x) = [3sin(x) - sin(3x)] / 4For this equation, if the problem states sin^3(theta+120), why would I only substitute the value inside the... more

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Precalculus Algebra 2

09/26/22

Algebra II question

f(x)= 6x-5 /9x+2 Evaluate: f(-a), -f(a), f(a+h)f(x) = −4x2 + 2x − 9Evaluate: -f(a), f(a+h)

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Answers •1

A particle moves along the x-axis, its position given by x(t) = t/(1 + t^2), t >= 0, where t is measured in seconds and x in meters.

Radian and Degree Measure

Math jdbdid eirhrh

Math Question regarding length

linear function

Write an equation for a line perpendicular to y = − 3 x + 5 and passing through the point (-3,1).

Radian and Degree Measure

Approximate the following logarithms using the properties of logarithms given

Find an exponential model for the population (in millions of people) at any time 𝑡t, in years after 1980.

Rewriting The Expression and Solving For Variables

A population, 𝑃(𝑡) (in millions) in year 𝑡, increases exponentially. Suppose 𝑃(6)=21 and 𝑃(15)=31.

Write an equation for a line perpendicular to y = 3 x − 1 and passing through the point (9,1).

What is the net change between (0,6) and (5,5)?

a function is given

a function is given.

Solve: | 3 x + 4 | < 8 Give your answer as an interval.

Calculus help with finding explicit expression

Lesson: 7.1 Radian and Degree Measure

write an equation for the shape of f(x)=x^(3) but moved two units to the left, five units up, and reflected in the y-axis

Find a formula for a function f(x) such that f(3) = 0; F(x) is even; f has horizontal asymptote at y=2, f has vertical asymptotes at x=4 & x=-4; f(0) = 1

What does n=? (statistics)

Precalc question

I'm a little stuck on this problem and I need some help

triple angle identity

Algebra II question

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