09/05/20

Writing equations of linear functions

Writing equations of linear functions, please help! The chart below is asking what the slope, y intercept, and equations are. In the first chart it has x on the left and underneath are the numbers:... more
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09/02/20

If cosθ=12/13 and cotθ < 0. find the exact value of sin(θ) and tan(θ).
If cosθ=12/13 and cotθ < 0. find the exact value of sin(θ) and tan(θ).How would I sketch this in an x-y plane?
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09/01/20

find the average rate of change of each function on the interval specified for real numbers

p(x)=3x+4 on [2,2+h] a(t)=1/t+4 on [9, 9+h] j(x)=3x^3 on [1,1+h] f(x)= 2x^2-3x on [x,x+h] I cannot find any help regarding these questions. I am not sure on the steps it takes to complete them.
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08/28/20

Differentiat the following: f(x)= ln((e^(3x)+2)/(e^(5x))
Having trouble with some calc 2 homework. Differentiating logs is proving to be difficult for me.
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08/28/20

Finding constants given an equation, finding the simplified expression to find f', and finding f' of various numbers.
Let f(x)=−1+5x2. If h≠0, then the difference quotient can be simplified asf(x+h)−f(x)h=Ah+Bx+C,1.where A, B, and C are constants. (Note: It's possible for one or more of these constants to be 0.)... more
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08/27/20

Challenging rational expression question that includes probability
This is the question: Consider an experiment in which a marble is tossed into a box whose base is shown in the figure. The probability that the marble will come to rest in the shaded portion of the... more
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08/26/20

solve: -13/4k - 8/3k = 7/3( -3/2k + 7/3) + 9/4(-3/2k + 3/2)
I already tried timing everything by 12, but I keep getting the wrong answer based off of my calculator. Can someone explain the steps so I can understand better?THank you!
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08/24/20

Let y=f(x) be a twice-differentiable function such that f(−1)=5 and dy/dx=1/5(xy^2+4y)^2 . What is the value of d^2y/dx^2 at x=−1 ?
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08/24/20

How to simplify 2(h+1)^3 - 2 all over h ?
I am doing a function f(x) = 2x^3 on [1, 1 + h]Assuming I'm correct, that would be f(x+h) - f(x) over htherefor, (2(h+1)^3) - (2(1)^3) over hwhich simplifies to 2(h+1)^3 -2 over hHowever, I am... more
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08/21/20

What would the angles need to be increased to ?
An isosceles triangle has two angles of 25°. The length of the side joining these two angles is 48mm. What would the angles need to be increased to in order to double the area of the triangle if... more
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08/05/20

Let S be the solid obtained by rotating the region shown in the figure about the y-axis. (Assume a = 6 and b = 3.)
Find its circumference c and height hc(x)=______h(x)=_______Use shells to find the volume V of SV=_______
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08/02/20

Find an equation for the hyperbola that satisfies the given conditions. Foci: (±7, 0), vertices: (±4, 0)
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07/29/20

Which are the possible courses for the sailboat?
A sailboat set a course of N 25° E from a small port along a shoreline that runs north and south. Sometime later the boat overturned and the crew sent out a distress call. They estimated that they... more
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07/28/20

A right triangle has a vertical side of length 8, a horizontal side of length 15, and a hypotenuse of length 17. The angle created by the horizontal side and the hypotenuse is labeled theta....
Use the adjacent figure to find the exact value of the following trigonometric function. sin θ/2
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07/27/20

write an equation for a circle that has a center at (-6,5) and passes through the point (-11,3)

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07/21/20

The solid obtained by rotating the region bounded by y=x^7, x=1, and y=−1 around the axis y=−1. Write a Riemann sum approximating the solid (use Dx for Δx ): volume ≈Σ

I already found the sum to the integrals which is 32pi/5 however, I keep getting the Riemann sum volume wrong. Can somebody help me with this question. *Then convert your sum to an integral and... more
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07/20/20

Find an equation for the set of points in an xy-plane that are equidistant from the point P and the line l. P(−9, 2); l: x = −3
Find an equation for the set of points in an xy-plane that are equidistant from the point P and the line l.P(−9, 2);    l: x = −3
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07/18/20

Graphing Quadratic Function
4 (x - 9/2) -8I can easily graph the vertex at (4.5, -8)My question pertains to finding the parabola. The instruction I received from IXL says:"Now look for another point on the parabola with... more
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07/14/20

An airline that flies from Los Angeles to Albuquerque with a stopover in Phoenix charges a fare of $100 to Phoenix and a fare of $120from Los Angeles to Albuquerque.

An airline that flies from Los Angeles to Albuquerque with a stopover in Phoenix charges a fare of $100 to Phoenix and a fare of $120from Los Angeles to Albuquerque. A total... more
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07/11/20

Find the parametric equation for the line...
Find the parametric equation for the line in which the planes x + y + z = 0 and 2x + y + −z = 2 intersect. What is the distance from point P0(0, 0, 1) to this line?
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07/09/20

Co-Ordinate Geometry (Circumcentre)
When solving, is there certain points to use to get the correct answer ti find the circumcentre of a triangle with given vertex points? Say for example, point A is (0,0), point B is (4.0) and point... more
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07/09/20

Two parabolas of the form y = ax^2+bx are tangent to the lines y = -2x-1 and y = 4x-4. Find the distance between the vertices of the parabolas.
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07/02/20

Find all points on the graph of the function f(x) = 2 cos(x) + cos2(x) at which the tangent line is horizontal. (Use n as your arbitrary integer.)
Find all points on the graph of the function f(x) = 2 cos(x) + cos2(x) at which the tangent line is horizontal. (Use n as your arbitrary integer.)(x,y)=______ (smaller value)(x,y)=______ (larger... more
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07/02/20

Intro To Trigonometry
I am learning about basic Trig functions (SohCahToa) and am having trouble determining when a side is the adjacent and when the side is opposite, This seems like a basic concept, and yet there is... more
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07/02/20

Equation of tangent line
f(x)=ln√1+sin2x (pi/4,ln√3/2)
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