Mark J.

Trigonometry

05/02/19

Find an equation of the tangent line to the curve y = sin (sin (x)) at the point (2pi, 0)?

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Differential Equations

05/02/19

How do you solve this differential equation: f''(x) =c (f'(x) /f(x)) +a?

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Physics

05/02/19

Physic problem exercise

The drawing shows a jet engine suspended beneath the wing of an airplane. The weight of the engine is 9400 N and acts as shown in the drawing. In flight the engine produces a thrust of 50100 N... more

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Trigonometry

05/01/19

Cos 75° has the same value as what?

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Trigonometry

05/01/19

If 2 – cos² θ = 3 sin θ cos θ, sin θ ≠ cos θ then tan θ will be?

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Trigonometry

05/01/19

For what value of k will the equation x^2 - 24x + k=0 have two equal real roots?

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Calculus

05/01/19

For a function f(z), where z= x+y, what is dz in terms of x and y?

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Calculus

05/01/19

Have you ever been in a situation that you should use integrals?

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Calculus

05/01/19

How do I find the particular solution of y''(x) +5y'(x)-6y=0, x=0, y=4, y'(x) =11?

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Differential Equations

05/01/19

If x=a (Cos(t) +t^2) and y=a (Sin(t) +t^2+t^3) then dy/dx equals to?

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Calculus

05/01/19

How do we integrate Sin^2 dx and Cos^2 dx?

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Differential Equations

05/01/19

How can I differentiate from the first principles cos x^2?

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Trigonometry

05/01/19

For the equation x-√x=0, perform the following: Solve for all values of x that satisfies the equation.?

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Differential Equations

05/01/19

How do you solve this differential equation: Sqrt (1+x^2) dy + sqrt (1+y^2) dx = 0?

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Linear Algebra Linear Equations

04/30/19

mixture math problem

A chemical company makes two brands of antifreeze. The first brand is 35% pure antifreeze, and the second brand is 85% pure antifreeze. In order to obtain 60 gallons of a mixture that contains 45%... more

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Geometry

04/30/19

Sum of a Finite Geometric Series is not Consistent

Hello,I'm very confused by a sum of a geometric series as solving it tow different ways gives me different results but I can't tell which way is wrong.3∑ 7*(1/10)^2nn=1a1 = 7*(1/10)^2=0.07a2 =... more

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Precalculus Probability

04/28/19

find the probability of at least 3 successes in 6 trials of a binomial experiment in which the probability of success is 50%

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Algebra 1

04/26/19

Why is this equation difficult to solve and how can we do it : 0.2x+800=250ln(x)-600?

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Algebra 1

04/26/19

If x+y =40 and xy = 384 what are the values of x and y?

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Calculus

04/25/19

Two cars start moving from the same point.

Two cars start moving from the same point. One travels south at 48 mi/h and the other travels west at 20 mi/h. At what rate is the distance between the cars increasing three hours later?

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Math Algebra 2

04/25/19