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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06/27/20

How do I solve this step by step?

For the function 𝑔(𝑥) = 𝑥𝑒-2x find all critical points and say which are local maximums or minimums. Also fine the point of inflection and say where the function is concave up and where it is... more
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06/25/20

Approximate the area under the curve
Approximate the area under the curve y=x3 from x=0 to x=3 using a Right Endpoint approximation with 6 subdivisions.
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06/23/20

Find the volume of the solid
Find the volume of the solid of revolution obtained by rotating the region bounded by the curve y=4−e^x and the line x=0 and y=0 about the line x = −3. Sketch the region and the axis of revolution... more
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06/21/20

Area of a circle
Let A be the area of a circle with radius, r. If  dr/dt=4, find dA/dt when r=4 .
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06/19/20

conditional statement Need Help Please
If the conditional statement “If I use my cell phone too much, my bill will be expensive,” is true, which other statement must also be true?Group of answer choicesa.If my bill is expensive, I used... more
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06/19/20

Need some help with this question
Integral of (x+4)/(x-4)dx
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06/18/20

hello i need help with this application question
How long will it take for $ 5200 to grow to $ 25,000 at an interest rate of 3.9% if the interest is compounded quarterly? Round the number of years to the nearest hundredth.
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06/18/20

Hi i need some help with this question
A region in the first quadrant is bounded above by the curve y = tanh x, below by the x-axis on the left by the  y-axis and on the right by the line x = ln 7.  Find the volume of the solid... more
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06/17/20

Prove: The chord joining the points of contact of the tangent lines to a parabola from any point on its directrix passes through its focus.
Hello, struggling with this one and appreciate help!Prove: The chord joining the points of contact of the tangent lines to a parabola from any point on its directrix passes through its focus.For... more
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06/16/20

Calculus - Newton's Method
How would I use Newton's method to find all roots of this equation to 6 decimal places?ex = 3-2x
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06/14/20

Need help with this Trig integrals question please include video explanation and trig identies included
Please Help with this question and include video because i am very confused about the trig identies involved.Evaluate the integral. π/2 5 sin2x cos2x dx 0
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