11/04/22

Use technology to perform a linear regression to determine the equation for the line of best fit for this data. Estimate the value of y when x=25.
x: 20, 22, 24, 26, 28y: 9, 12, 16, 20, 23Please explain the steps clearly. I don't know how to use a linear regression/graphing calculator. I also don't have one.
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11/04/22

What is the distance between the points (-20, 18) and (-14, 26)
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11/04/22

what is the equation of the parabola with a focus of (-2,5) and a directrix at y=3
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11/04/22

Determine where the function is concave upward and where it is concave downward.
Determine where the function is concave upward and where it is concave downward. (Round your answers to three decimal places, if necessary. Enter your answer using interval notation. If an answer... more
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11/04/22

Precalculus: Establish the identity
sin^2x cos^2x =1/4 sin^2(2x)
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11/04/22

Find an equation in the form y=ax^2+bx+c for the parabola passing through the points. (-4,94)(3,24)(-2,34)
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11/03/22

Given x^(2/3) x (1-x)^(1/4) Find the absolute minimum and maximum value of f on [0,1] by finding the critical numbers
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11/03/22

Precalculus: Find exact value of the expression: tan θ[sin^-1 (4/5) + cos ^-1 (1)]
Find exact value of the expression: tan θ[sin^-1 (4/5) + cos ^-1 (1)]
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11/01/22

Straight line graphs and area
By plotting the lines 2x-y=6, y=-x and y = 2 on a copy of the grid below, find the area of the region enclosed between the three lines.
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11/01/22

How do I solve this?
A function 𝑓(𝑥)f(x) and interval [𝑎,𝑏][a,b] are given. Check if the Mean Value Theorem can be applied to 𝑓f on [𝑎,𝑏][a,b]. If so, find all values 𝑐c in [𝑎,𝑏][a,b] guaranteed by the Mean Value... more
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11/01/22

Application of Functions
Determine f-1(x) if f(x) = x+2 / x-3, where x not equal 3
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11/01/22

absolute extrema problem
f(x)= A/(x2-8sqrt(x)+60)for parts c and d only assume the absolute minimum of f on [0,21] is 8. a.) list all x values that must be tested to find the absolute extrema of f on [0,21]b.) At which... more
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11/01/22

I need help with this world problem
Yoko bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $250 less than the desktop. She paid for the computers using two different financing plans. For the... more
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10/31/22

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. x2 − xy − y2 = 1, (5, 3) (hyperbola)
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10/31/22

How much would you need to deposit in an account now in order to have $4000 in the account in 15 years? Assume the account earns 6% interest compounded monthly.
help
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10/31/22

Optimization Problems

A solid is formed by adjoining two hemispheres to the ends of a right circular cylinder. The total volume of the solid is 6 cubic centimeters. Find the radius of the cylinder that produces the... more
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10/31/22

A rectangle is bounded by the x-axis and the semicircle y = sqrt (49 − x2) . What length and width should the rectangle have so that its area is a maximum?
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10/31/22

Find the length and width of a rectangle that has the given perimeter and a maximum area. Perimeter: 9P units
This is an optimization problem. So I think I have to find the constraint function and the object function, but I am at a loss.
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10/31/22

find the equation of a rational function

find the equation of the rational function in the form y= ax2 + bx+c/ kx2+mx+n with the following characteristics. hole at x=-2vertical asymptote at x=3 x-intercept at -5 horizontal asymptote at y=1
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10/31/22

Two trains leave towns 792 kilometers apart at the same time and travel toward each other. One train travels 20 km/h faster than the other. If they meet in 3 hours, what is the rate of each train?
NAME Linear Systems TOPIC NAME Solving a distance, rate, time problem using a system of linear equations
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10/30/22

Solve for x: Log(base 3)(X) + log(base 3)(x+4) = 8
There are two potential roots, A and B, where A = ?B = ?Is A actually a root? (yes or no)Is Bactually a root? (yes or no)
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10/30/22

help a s a p !!!!!!!!!!!!
the equation 3x-by+10=0 has a gradient of -1/2. the value of b is:
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10/29/22

Consider the parabola given by the equation
A) The vertex is: __________B) The axis of symmetry is___________C) The y - intercept is the point ___________D) Find the coordinates of the two zeros of the parabola and write them as a list,... more
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10/29/22

Use implicit differentiation to find dy/dx and then find the equation of the tangent line to the dx x2 − 3xy2 = x − 12. curve at x = 1 and y = −2 where
Use implicit differentiation to find dy/dx and then find the equation of the tangent line to the curve at x = 1 and y = −2 where x^2 − 3xy^2 = x − 12
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10/28/22

The polynomial of degree 3 , P ( x ) , has a root of multiplicity 2 at x = 4 and a root of multiplicity 1at x = − 4 . The y -intercept is y = − 38.4 . Find a formula for P ( x ) .
The polynomial of degree 33, P(x)P(x), has a root of multiplicity 22 at x=4x=4 and a root of multiplicity 11 at x=−4x=-4. The yy-intercept is y=−38.4y=-38.4.Find a formula for P(x)P(x).
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