03/23/22

A rumor spreads through a school.
A rumor spreads through a school. Let  be the fraction of the population that has heard the rumor at time  and assume that the rate at which the rumor spreads is proportional to the product of the... more
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03/23/22

Can anyone confirm my answers? Using 1st principles to find slope at given x value.

** using the tangent slope method ** A. f(x)=2x^2-6x at x=3My answer: the slope at x=3 is 6B. y=3x^3+1 at x=-4My answer: the slope at x=-4 is 47Am I on the right track? Or if either answer is... more
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03/21/22

help me with this please
Select the correct answer.Points A and B lie on a circle centered at point O. If OA = 5 and  what is the area of sector AOB? Use the value π = 3.14, and choose the closest answer.A. 19.6 square... more
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03/21/22

The length of string is 54 cm
A piece of string whose length is given below is cut into two pieces. One piece is used to form an equilateral triangle and the other to form a circle. What should be the perimeter of... more
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03/19/22

Please please help
Solve for z:x = 2.5yx + y + z = 66x - 2y - 2z = -12(A) z = -120(B) z = 16(C) z = 10(D) z = -74(E) None of these
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03/17/22

For what values of x will this equation be undefined, explain
4/2x-4=1/x-2For what values of x will this equation be undefined, explain
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03/17/22

For what values of x will this equation be undefined, explain
5/x^2-4 + 2/x = 2/x-2For what values of x will this equation be undefined, explain
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03/16/22

How do you find the rate of change for a radius of a circle?
The radius of a circle is increasing at a constant rate of 7 inches per second. At the instant when the radius of the circle is 77 inches, what is the rate of change of the area? Round your answer... more
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03/14/22

A 12 foot ladder is places 4 foot from the bottom of a house. How high will the ladder reach on the house?
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03/14/22

Solving for range with Arc Length Integral
I encountered an interesting problem beyond my skill level, which is thisSOLVE FOR bL = ∫ab √(1+(2wx)2) dxIn which I need to solve for b, but I don't know how to do that yet.If anyone can help I'd... more
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03/12/22

The area of a rectangle is given by the expression x2 + 5x + 4. If the length of one side is given by x + 2, what is the length of the other side?

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03/11/22

x + y = 7 128x + 512y = 2432 What is the total number of 512 MB memory sticks Kinu has?
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03/01/22

Help with this question
Find dy/dx by implicit differentiation. Then find the slope of the graph at the given point.y^2=In(x), (e^64,8)(a) dy/dx=(b) At (e^64,8): dy/dx=
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03/01/22

for these 2 questions, how do you know they are differentiable? and how do you find the expressions?
If f is a differentiable function, find an expression for the derivative of each of the following functions:a) g(x) = f(x2) for this one I got 2x but I don't understand why it is supposed to be... more
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02/27/22

Consider the differential equation ⅆy/ ⅆx=(y−1) (x+1) cos(x^2+2x+π).
Find the particular solution y= f(x)  to the differential equation with initial condition f(0)= 5/2 .
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02/26/22

If snoop is 6 years older than Dre and the sum of their ages is 78. How old is Snoop?

This is a algebraic question. If that helps?
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02/25/22

About an angle bisector
In any triangle ABC, the bisector of angle ABC intersects AC at D. Prove that the product of the lengths of AB and BC is equal to the square of the length of BD plus the product of the lengths of... more
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02/25/22

Find an expression for the function whose graph is the given curve. (Assume that the points are in the form (x, f(x)).) The line segment joining the points (−7, 8) and (8, −8) f(x) =___
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02/24/22

I need an answer from someone please
give an example of a rational function whose graph has two vertical asymptotes: x=-3, x=0, and one x-intercept of 5
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02/24/22

Please help with this trigonometry word problem

7. Two cars need to merge into a lane at the vertex of angle C. The angle between lane AC and lane BCis 45° Car A is 100 feet from the vertex at angle C and Car B is 50 feet from the vertex at... more
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02/24/22

Could someone please help me with my trigonometry word problem ??
Julia is building a triangular dog house for her chihuahua Jorge, with three boards of wood. Board a is 8 feet, board b is 12 feet, and board c is 6 feet long. What would the angles between the... more
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02/24/22

Integral of (dx/x*sqrt(36+x^2)) using hyperbolic functions
The final answer should not include hyperbolic functions
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02/23/22

Helpp me solve this problem!!!
Let . A general quadratic polynomial can be written as .Find the quadratic polynomial such that:  ,  ,  . Plot the graphs of and together near . Describe how the graphs are related.
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02/22/22

Triangle inscribed in a circle
Isosceles triangle ABC with vertex at A is inscribed in a circle. Chord AD intersects BC at E.Prove that the square of the length of AB minus the square of the length of AE is equal to the product... more
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02/21/22

A flat screen television is advertised as being 45 inches on its diagonal. If the TV is 18 inches tall, then how wide is the screen?
The screen is ________ inches wide.Round your answer to the nearest tenth as needed
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