06/24/20

Evaluate line integral of vector field
F (x, y, z) = y sin(x2) i + xyz j + (x + y + z) k along line segment from the point (0, 0, 0) to point (1, 2, 3).
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06/21/20

perform the indicated operations and write your result as a single number.
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06/21/20

How many different ways can you make 50 cents
How many different ways can you make 50 cents if you have 1 quarter, 5 dimes, and 10 nickels?
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06/13/20

Find the gradient of the line segment between the points (2,-3) and (-3,-8).
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06/12/20

Use the Radio Test to determine whether the series is convergent or divergent
Σ With upper limit to infinite, down limit to n=1the equation inside Σ is n!/n^nim asked to find anand evaluate an+1/an
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06/04/20

Potential/Kinetic Energy Questions
Greg raises a 75.0 N physics book from a table 0.750 m above the floor to a shelf, 2.15 m above the floor. What was the change in potential energy? A bowling ball, travelling at 0.950 m/s comes... more
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05/25/20

What is the slope of the tangent at x=pi for f(x)=e^sinx
What is the slope of the tangent at x=pi for f(x)=e^sinx
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05/17/20

Find the derivative of the equation f(x)=x^2+7x-2 at x=0
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05/13/20

The right lens of Josh's contact lenses is a converging lens of +2.50 diopters. He can read a book held as close as 25 cm from his eyes.

The right lens of Josh's contact lenses is a converging lens of +2.50 diopters. He can read a book held as close as 25 cm from his eyes. Complete the following statement: Without his lenses, Josh's... more
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05/10/20

physics2 collage
Two co-axial cylindirical conducting shells with radius a and b has lenghts L. If these cylindirical shells have ±Q charges on them. a=2m, b=4m, Q=143C, L=5m anda mass of 2kg that has a charge of... more
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05/05/20

Quantitative Analysis
   Probability of choosing three males from a group of 20 people of which 7 are female.
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04/30/20

Help with Spearman's rank correlation

A university course was taught by 2 different professors.Students could choose whether to attend the lectures given by professor Q or the lecture by professor R. At the end of the course, all... more
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04/29/20

Find the derivative of the function.
Find the derivative of the function.f(x) = ln( square root of (x) +7)
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04/29/20

Farmers and Watermelon Crops
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 42 farming regions gave a sample mean of x = $6.88 per 100 pounds of watermelon. Assume that σ is... more
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04/29/20

differential equations
Set up a differential equation to model the salt mass for the following information. ‘A 100 liter tank starts with 20 L of pure water. A saline mix of 10 grams of salt per liter of water is pumped... more
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04/24/20

What’s the answer to In(2x-4)=In(x+6)
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04/21/20

Transform of a convolution problem
Find L^-1 {1/((s^3)*(s-1))} as a convolution and then evaluate the convolution
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04/21/20

Could someone verify I am understanding this Calculus problem correctly, please?
Hi, I am working on a problem and I think I have it solved, but would just like to make sure that I have done it correctly, if possible. I appreciate anyone taking the time to help me.Problem:"The... more
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04/21/20

Diffrention of functions
Differentiate.f(x) = 2xex csc x
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04/20/20

I have an important Physics Question
2 players push off each other: One has a mass of 60 kg. The other has a mass of 80 kg and moves back with a velocity of -3 m/s. What is the 60kg players momentum?
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04/20/20

five more than twice a number is 7

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04/16/20

the product of 4 and the sum of -5 and a number is -35
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04/15/20

What is the total charge, total current, voltage, power, and electrical energy?
2.67 x 10^20 electrons travel through a 25.0 W resistor in 0.878 s. Find:  (a) the total charge of the electrons  (b) the total current through the resistor,  (c) the voltage for the... more
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04/14/20

I am having trouble to solve this kind of question

suppose that f(x)=3x-1. find f(a+h)-f(a)/h
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04/14/20

Optics and magnification problems
1.A converging lens has a focal length of 0.48 m. If an object is placed at 0.07 m from the lens, where will its image be located?2.Is the image virtual or real in the previous question?3.A concave... more
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