03/23/20

bio calc differential equation webwork

1) Let y''-4y = 0. Find all values of r such that y=ke^(rx) satisfies the differential equation. If there is more than one correct answer, enter your answers as a comma separated list. 2)which of... more
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03/19/20

Calculus Question
Use the given data to find the values of the cosine of (A + B) and of (A – B). Give the quadrant in which each of the angles (A + B) and (A – B) terminates. Angle A in Quadrant II, tan A = -12/5 ,... more
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03/19/20

write a quadratic function whose only zero is 10
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03/19/20

Write the equation of the parabola in vertex form. Vertex (-5, 8) Point (-4,10)

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03/19/20

cos(1/2 tan^-1 3/5)=
cos(1/2 tan^-1 3/5)=Solve
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03/18/20

differential geometry
 What is the differential (matrix form) of  
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03/12/20

parameter question stuck on
The ellipse (x^2/9^2)+(y^2/5^2)=1 can be drawn with parametric equations where x(t) is written in the form: x(t)=rcos(t) with r= __?___and y(t)=__?__
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03/11/20

How to find the 14th term of the sequence 8/9, -4/3, 2
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03/11/20

The function is an example of

The function y = (4)(1/2)^x is an example of exponential decay a higher order polynomial a quadratic equation exponential growthThe function y = (1/2)(3)^x is an example of a higher order... more
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03/10/20

Question below: This is a practice question for a bigger test, I need an explanation so I can understand. Thanks
George is considering two different investment options. The first option offers 7.4% per year simple interest on the initial deposit. The second option offers a 6.5% interest rate but is compounded... more
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03/10/20

Question Help Please!

In the model y = 500(1.3)^x, what's the initial value (y-intercept)?The model y = 500(1.035)^x indicates the value of an investment, where x is the number of whole years. What's the growth factor... more
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03/10/20

Find area bounded by the curves
Find the area of the region bounded by the curves , y = 0, and x = 4 obtained by integrating with respect to y. Your work must include the definite integral and the antiderivative.
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03/09/20

Is a square a rhombus or is a rhombus a square

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03/09/20

If sin(θ)=12/13, and θ is in Quadrant II, then what is sin(θ/2)?
Simplify your answer completely.
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03/09/20

equations of line

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03/09/20

Evaluate the integrals
1) ∫x √(x-4) dx2) ∫(sin(5/x))/(x^2) dx3) ∫tan^3(4x) sec^2(4x) dx
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03/09/20

What is angle DAB?
There are two triangles: ABC and BDC. Angle A in triangle ABC is 40 degrees. Angle C in triangle ABC is 20 degrees. Line AD = BC. What is angle D in triangle ABD?
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03/08/20

Pre Calc Question
Use the function value and constraint below to evaluate the given trigonometric function.Function Value ConstraintEvaluate: 
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03/06/20

Two circles of radius 8 are tangent to the graph of y2 = 4x at the point (1, 2). Find equations of these two circles. (Enter your answers as a comma-separated list.)
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03/05/20

Solve the equation on the interval [0,2 pie)
4 cos^2 x=1x= ? Type an exact answer use integers of fractions for any number in the expression
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03/04/20

Write a polynomial function of least degree with real coefficients in standard form that has -1, 3, and -i as zeros, and a leading coefficient of 1.
Write a polynomial function in standard form of least degree that has real coefficients, -1,3, and -i as zeros, and a leading coefficient of 1.
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03/04/20

Solve for u in terms of v, w and x
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03/04/20

Bearing and distance

Two ships A and B leave the same harbour at the same time in the directions 152° and 142° respectively. Calculate the distance between the two ships when A has travelled 10km and B has travelled... more
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03/04/20

Air Prep Skill practice
The relationship between altitude and the boiling point of a liquid is linear.At an altitude of 8100 ​ft, the liquid boils at 197.23 degrees Fahrenheit. At an altitude of 4600 ​ft, the liquid boils... more
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03/04/20

Use the Factor Theorem to determine whether the binomial x – 3 is a factor of the polynomial function ƒ(x) = –5x3 + 16x2 – 9.
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