12/13/21

Which of the following is equivalent formula to r = d/t
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12/04/21

What is the formula for calculating this?
X follows a beta distribution with parameters alpha=5 and beta=2. What is V(X)?
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12/01/21

Find the least squares regression line

Find the least squares regression line for the given points. (-2,-2), (-1,-1), (0,0), (1,3), (2,3)
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11/21/21

Take the Laplace transform of the IVP
-4 dy/dt - y = 0 y(0) = -8I need to use Y for laplace transform of y( ) = Y{0}So Y = ( ) / (s - )I found that y(t) = -8e^(-t/4)
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11/17/21

If the base is 10 then the given logarithm is a natural logarithm.

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11/11/21

Find the area of the region under the curve y=7-4x^2 and above the x-axis
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11/06/21

Logarithm equations
Solve log base 3(2x +5)-log base 4 x =3
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11/03/21

Express the confidence interval 30.9 % ± 7.7 % in interval form.
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11/02/21

AP CHEMISTRY GAS LAWS
If 3.21 Moles of ammonia gas occupy 5.22 L at 50 degrees C, calculate the pressure of the gas using the ideal gas equation and by using the van der Waals equation. Compare each value to the actual... more
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10/28/21

heat engines thermodynamics
What is the entropy change of a gas in J/K (to 2 decimal points) when one mole of a perfect gas reversibly expands from 0.36 m3 to 2.42 m3?
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10/24/21

Maxima and Minima
Let f(x) = e2x-4x^2-7 The derivative of f is f'(x) = _________An equation for the tangent line to the curve y = f(x) at x = 0 is y = ____________
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10/19/21

Mean Value Theorem
Consider the function f(x)=1/x on the interval [3,12]. Find the average or mean slope of the function on this interval.  By the Mean Value Theorem, we know there exists a c in the open... more
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10/18/21

Find the area under the standard normal curve which lies

A. to the left of 0.47  b) to the right of z = -0.06  ( c) to the right of z = 2.53d) to the left of z = -1.31  (e) between z = 0.72 and z = 1.59  (f) between z = -0.11 and z = 2.48
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10/18/21

Let y=tan(5x+8).Find the differential dy when x=4 and dx=0.1   Find the differential dy when x=4 and dx=0.2
Let y=tan(5x+8).Find the differential dy when x=4 and dx=0.1   Find the differential dy when x=4 and dx=0.2
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10/18/21

Find the smallest number n of terms needed to obtain an approximation of the series ∞∑ k=1 24ke^(−0.01k)^(2) accurate to 10^−6
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10/11/21

Consider the following equation. 3x^4 − 8x^3 + 9 = 0, [2, 3]

(b) Use Newton's method to approximate the root correct to six decimal places. 
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10/11/21

Use Newton's method with initial approximation x1 = 1 to find x2, the second approximation to the root of the equation x4 − x − 1 = 0. (Round your answer to four decimal places.)
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10/10/21

Find the center of mass and the moment of inertia about origin of the thin plate bounded by the x-axis, the lines x=±1 and y=x^2 with a density function ρ(x,y) = y+1 .
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10/06/21

If a 70-kg swimmer pushes off a pool wall with the force of 250 N , at what rate will the swimmer accelerate ?
can you give me the answer to my question in a scientific way
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10/06/21

A motorist runs out of gas on a level road 150 m from a gas station. The driver pushes the 1,120 kg car to the gas station.

f a 120 N force is required to keep the car moving, how much work (in J) does the driver do?
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10/04/21

Find the slope of the tangent line to the function f(x)=1/x-3 at a=−1.
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10/04/21

How does the third law of thermodynamics relate to the temperature of absolute 0?
How does the third law of thermodynamics relate to the temperature of absolute 0?Group of answer choicesNear absolute 0, temperature becomes meaninglessAbsolute 0 temperature can only be reached by... more
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10/04/21

What do you think absolute 0 on the Kelvin scale represents?
What do you think absolute 0 on the Kelvin scale represents?Group of answer choicesThe coldest temperature scientists have managed to create in a laboratoryThe temperature of deep spaceThe... more
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09/30/21

Derivatives Product
Use the product rule to find the derivative of (3x^9+7x^10)(4e^x+5)Use e^x for ex. You do not need to expand out your answer.I know product rulef（x）=g（x）*h（x），what is g(x) and h(x)?
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09/06/21

statistics math

Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy and storage. Let x be a random variable that represents the number of milligrams of porphyrin... more
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