10/12/22

f(x) = (5x - 8x^2 + 13x^3)/(-cos x). Find f ' (x)
Sorry, I had to re-ask this question... The last one had an error. Thank you.
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10/12/22

The midpoint of AB is M(1, 3). If the coordinates of A are (4, 1), what are the coordinates of B?
The midpoint of AB is M(1, 3). If the coordinates of A are (4, 1), what are the coordinates of B?
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10/11/22

Implicit Differentiation
Given xy+2x+3x^2=−5:(a) Find y′ by implicit differentiation (leave your answer in terms of x and y).(b) Solve the equation for y and differentiate to get y′ in terms of x.(The answers should be... more
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10/11/22

Let ABCD be a square and choose an arbitrary point P in its interior. Show that KAP B + KDP C = KAPD + KBP C .
Let ABCD be a square and choose an arbitrary point P in its interior. Show that areaAPB + areaDPC = areaAPD + areaBPC .
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10/11/22

In △ABC, let M be the midpoint of side AB and let N be the midpoint of side BC. Prove that KMNC = 1 4KABC .
In △ABC, let M be the midpoint of side AB and let N be the midpoint of side BC. Prove that areaMNC = 1/4areaABC .
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10/11/22

333 online seven practice problems question seven
A 235 inch board is cut into two pieces one piece is four times the length of the other find the length of the shorter piece. How would I do this and what do you get to the answer
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10/11/22

Help! How would I answer the following two?

A. given f(x)=log(6+x2)what would the the interval notation(s) for concave up and concave down? What would the inflection point(s) be?
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10/11/22

Use synthetic division to find the quotient and remainder when

2x^4+10x^3−x^2+11x+39 is divided by x+1
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10/11/22

How do I solve this using derivative of exponents?
Let f(x)= −5e^x + e^−1. Find f′(x).
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10/11/22

Suppose that in order to remove x% of the pollution from an oil spill, it costs C thousands of dollars where C(x)=9x100−x. How much does it cost to remove 25% of the pollution? thousand dollars.

 Suppose that in order to remove x% of the pollution from an oil spill, it costs C thousands of dollars where C(x)=9x/(100−x).How much does it cost to remove 25% of the pollution? ______ thousand... more
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10/11/22

f(x) = sin x cos x + x^3 tan x. Find f ' (x)
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10/11/22

Slope of tangent line implicit differentiation

Find the slope of the tangent line to the curve defined by 4x^6−9xy+9y^2=472 at the point (−2,−6).The slope of the curve at the point (−2,−6) is .
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10/11/22

Integrate this problem using trig substitution
∫ex√(64-e2x)dx
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10/11/22

A streetlight is on a pole 15 ft tall. A boy 5 ft tall walks away from the pole at a rate of 5 ft/sec. At what rate is his shadow lengthening when he is 25 ft from the pole?
A streetlight is on a pole 15 ft tall. A boy 5 ft tall walks away from the pole at a rate of 5 ft/sec. At what rate is his shadow lengthening when he is 25 ft from the pole?At what rate (in feet... more
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10/10/22

Find the polynomial function f with real coefficients that has the given degree, zeros, and solution
Degree: 4. Zeros: -3, 1, i. Solution point: f(0) = -6.
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10/10/22

Given f(x), find g(x) and h(x) such that f(x)=g(h(x)) and neither g(x) nor h(x) is solely x.
f(x)=2/x−5Find g(x)Find h(x)
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10/09/22

There is a line through the origin that divides the region bounded by the parabola y = 8 x − 5 x 2 and the x-axis into two regions with equal area. What is the slope of that line?
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10/08/22

determine the value of b such that f is continuous at b. Determine if f is differentiable at b.
PIECEWISE f(x)= xx-7 , 0≤x≤b f(x)= 6/x , x>b
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10/08/22

Find the area of the region between the curves
The curves: y = square root x , y = 1/2 and x = 9
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10/07/22

Can someone help me

A combined total of $32,000 is invested in two bonds that pay 5% and 7% simple interest. The annual interest is $2,000.00. How much is invested in each bond?
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10/07/22

Related Rates Problem I Can't Solve
Consider a right cone (pointed downwards) that is leaking water. The dimensions of the conical tank are a height of 19 ft and a radius of 8 ft.How fast (in ft/min) does the depth of the water... more
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10/06/22

Given that −5i is a zero, factor the following polynomial function completely. Use the Conjugate Roots Theorem, if applicable. f(x)=x4−13x3+65x2−325x+1000
f(x)=
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10/06/22

If 13+4f(x)+x^2(f(x))^3=0 and f(−3)=−1, find f′(−3).

Please help me, this is due tonight.
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10/05/22

Find the equations of the parabola whose directrix x = −4, axis y + 2 = 0, and latus rectum 10.
I need to know how to do it step-by-step.
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10/05/22

finding the length of two triangle sides
In a right triangle, one leg is 4 ft shorter than the other leg. The hypotenuse is 12 ft Approximate the lengths of the legs to the nearest tenth of a foot.Short leg is how long?Long leg is how... more
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