TIM B.

10/25/18

How do you graph y = 2|x-3|using two linear equations?

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10/20/18

A transformer has a primary voltage of 549 V and a primary current of 121.66 A. The ratio of primary to secondary loops is 440. What is the current in the secondary?

(show units: type V for Volts, A for amps, ohms for Ω , W for Watts, eV for electron volts, Hz for Hertz, N for newtons, m for meters, s for seconds, J for Joules, cal for calories, m/s for meters... more

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Math Statistics

10/18/18

If a seed is planted, it has a 95% chance of growing into a healthy plant. If 9 seeds are planted, what is the probability that exactly 1 doesn't grow?

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Statistics

10/14/18

the normal approximation to the binomial distribution

a magazine reported that 6% of american drivers admit to reading a newspaper while driving. if 500 drivers are selected at random, find the probability that exactly 40 will admit to reading the... more

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Statistics

10/08/18

Don't understand Kolmogorov-Smirnov test

I am stumped doing a journal club for class. I am looking at a scientific article in which they used the "Kolmogorov-Smirnov test" and I have no idea what that is. I'm trying to decipher if it was... more

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Algebra 2

09/19/18

Ann and Nancy use a metal alloy that is 21% copper to make jewelry how many ounces of an alloy that is 18% copper must be mixed with an alloy that is 23% copper

What's the answer?

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Physics

09/05/18

A person drops a penny from the top of a tall building and it takes 15 seconds to hit the ground. Using the acceleration -9.8 m/s^2, how tall is the building?

HELP!!!!!!!

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Calculus

08/29/18

Differentiate w.r.t. x sin^(-1)⁡〖(3x-4x)〗

i need help on how to Differentiate sin^(-1)⁡〖(3x-4x)〗

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Calculus 3

06/25/18

Use Lagrange multipliers to find the maximum and minimum values of f(x,y)=5x+y on the ellipse x^2+36y^2=1.

Use Lagrange multipliers to find the maximum and minimum values

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Thermodynamics, Engineering

04/10/18

Thermodynamics Question

A 95-slug automobile changes speed from 55 mi/h to 30 mi/h while climbing a 3° hill. If the change in speed occurs over a 1335-ft straight section of road, find the total work. Answer: -270 ft... more

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Calculus

03/26/18

integration of sinx +cosx/16 + 9sin2x w.r.t. x

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Algebra 2

03/15/18

mary drove 150 miles in three hours. What washer average rate of speed

Using the formula D=r? t where D equals distance traveled, r equals the average rate of speed, and t equals the time traveled, choose the expression or equation that correctly represents this... more

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Physics Problem Solving Using Rational Equations

03/12/18

Rational Expression Quations

If the voltage V in an electric circuit is held constant, the current I is inversely proportional to the resistance R . If the current is 60 amperes when the resistance is 204 ohms, find the... more

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Calculus Differential Equations Approximation

03/11/18

Differentials to find approximate amount of paint

A coat of paint of thickness 0.06 cm is to be applied uniformly to the faces of a cube of edge 32 cm. Use differentials to find the approximate amount of paint required for the job, correct to the... more

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Differential Equations

03/06/18

How to find the general solution of xy'-4y=e^x using the associated homogeneous equation ?

so far I've done: xy'-4y=ex xyH-4yH=0 ln|yH|=4lnx+c x4 |yH|=Ae(x^4) y(x)=A(x)e(x^4) y'=A'e(x^4)+4x3A(x)e(x^4)=A'e(x^4)+4x3y x(A'e(x^4)+4x3y)-4A(x)e(x^4)=e^x

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Related Rates

02/25/18

related rates

A 6-foot-tall woman walks at 6 ft/s toward a street light that is 18 ft above the ground. What is the rate of change of the length of her shadow when she is 16 ft from the street light? At what... more

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Statistics Question

02/17/18

please help solve, confused

Assume that a procedure yields a binomial distribution with 2 trials and a probability of success of 0.50. Use a binomial probability table to find the probability that the number of successes is... more

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Physics

02/15/18

This questions involves youngs modulus

A mole of gold atoms are arranged in a cube. A 1 kg mass is placed on top of the cube. The interatomic spacing for gold is 10^−10 m andYoung’s modulus of gold is 1011 N/m2. Given there are roughly... more

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Integration Integration , Calculus

02/08/18