05/07/21

Find length of the curves
Find the length of the curve x =sin^3 t, y=cos^3 t, 0<=t<= 2 pi. Note thata the integrand of the integral representing the arc length is always larger than or equal to 0
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04/22/21

Write an equation of the ellipse with the given characteristics

Center at (0,0)Vertex: (−6,0)Co-Vertex: (0,−3)
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04/22/21

ive tried starting this but i got lost its precalculus

Find the inverse function of f(x)=11+3^√x f^-1(x)= 
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04/22/21

This is confusing

Use the following data to determine the empirical formula of the compound formed by elements X, Y, and Z. Element  Percent by Mass Atomic Mass X 38.76% 20.04 g/mol Y 19.97% 15.49... more
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04/19/21

Hess’s Law: Two Reactions
Given the standard enthalpy changes for the following two reactions:(1) 2Ni(s) + O2(g)2NiO(s)...... ΔH° = -479.4 kJ(2) 2Zn(s) + O2(g)2ZnO(s)......ΔH° = -696.6 kJwhat is the standard enthalpy change... more
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04/10/21

Determine the area of the triangle formed by the points A (-1, 2, 1), B (-1, 0, 0) and C (3, -1, 4)
Determine the area of the triangle formed by the points A (-1, 2, 1), B (-1, 0, 0) and C (3, -1, 4)
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04/07/21

Find exactly the value of the integral
 f(x) =  with an interval of convergence, -3 < x < 3. Find exactly the value of  . Your answer will be a positive integer. Type your answer in the space below (ex. 4)
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04/03/21

calculus helppp
You are given the following points: 𝐴=(13,11,−20)A=(13,11,−20), 𝐵=(−16,0,10)B=(−16,0,10), 𝐶=(−9,16,16)C=(−9,16,16). Which point is closest to the yz-plane?What is the distance from the yz-plane to... more
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04/03/21

calculus helppp
Consider the planes 3𝑥+4𝑦+5𝑧=13x+4y+5z=1 and 3𝑥+5𝑧=0.3x+5z=0.(A) Find the unique point P on the y-axis which is on both planes. Find a unit vector 𝐮u with positive first coordinate that is parallel... more
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03/28/21

Please help with math question
A curve is defined by parametric functions x(t) and y(t), where dx/dt = 3t^2 and dy/dt = t^7-2t^4. For what positive value of t is d^2y/dx^2 = 1?a) 1.202b) 1.149c) 1.079d) 1.525
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03/21/21

Someone said that “A capacitor can store charges” is technically wrong. What does he mean?

Please help me understand and find reasoning as to what does he really mean. Hoping someone will help me. Thank you
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03/21/21

which integral gives the length of the graph of y= arcsin(x/2) between x=a and x=b, where 0<a<b<pie/2?
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03/20/21

calculussssss please solve my questıonnn
Consider the series∑𝑛=1∞ (2𝑥)n /nFind the interval of convergence of this power series by first using the ratio test to find its radius of convergence and then testing the series' behavior at the... more
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03/20/21

please help with algebra 2

write an exponential equation given the two points. (1, -4) and (4, -32)
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03/17/21

find centroid of the region in the first quadrant bounded by given curves: y= x^7 , x=y^7
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03/17/21

The kw for water is 5.5 x 10-14 at 50oC. What is the pH of a neutral aqueous solution at 50oC?
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03/13/21

Which one of the following is a BrØnsted -Lowry acid? 
Which one of the following is a BrØnsted -Lowry acid? A) (CH3)3NH+ B) CH3COOH C) HF D) HNO2 E) all of the above
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03/06/21

altitude triangle help
The altitude of a triangle is increasing at a rate of 1 centimeters/minute while the area of the triangle is increasing at a rate of 3.5 square centimeters/minute. At what rate is the base of the... more
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02/23/21

Let f(x) = x^2−9/|x−3|. Show that limx→3f(x) does not exist. (Do not use a table ofvalues or any graphs.)
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02/23/21

Determine all solutions for the Diophantine equation, 79𝑥 + 61𝑦 = 83 [6 marks]
Please respond I need the solution in 15minutes.
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02/19/21

Can someone help me with this Physics problem?
A large insulating sphere of radius a carries a total positive charge Q with a uniform volume charge density. A very thin tunnel is drilled through a diameter of the sphere and two small spheres... more
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02/19/21

What is the area under the curve f(x)=tanx/(secx+tanx) and the x-axis, from x=0 to x=pi
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02/05/21

How many carbon atoms are in 44g H2C2O4?
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02/05/21

Does series 1/e^n conditionally converge?

Does series 1/e^n conditionally converge?
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02/03/21

Stoke's Theorem
Verify Stoke's Theorem for ->F=(xy+x^2)i + (x^2+y^2)j over the square bounded by the lines x = -1, x = 1, y = -1 and y = 1.What is the final answer?
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