Patrick T.

11/20/21

You buy a new computer for $2100. The computer decreases by 50% annually. When will the computer have a value of $600?

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11/20/21

write an equation for the ellipse given the center (-1,-1) and the vertices (-1,1) and (-1,-3)

In the graph, the center is two units away from the two ends (major axis) so I figured a=2 and then (h,k + or - a), and the graph is parallel to the y-axis. However without the foci I do not know... more

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Algebra

11/20/21

what would be the slope of the line passing through (-6, 7) and (12, -10) ?

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Math

11/20/21

Equation problem

If f(x)=x^2+9x-14 and g(x)=x^2-x+3.Find (f-g)(x)

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Math

11/20/21

i need help on this

Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.y=23(0.292)^xwhat is the % increase

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Math

11/20/21

for (y + 7)2 + y2 = 65, why is it y^2 + 14y + 49 + y^2 = 65 and not y^2 +49 + y^2 = 65?

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Math

11/20/21

Calculus Math Questions

Good evening, please help with these questions:(1): A company determines that the value P, in dollars, of a certain item once it goes on sale is determined by the function p (x) = 250−15x,... more

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Math Calculus Differential Equations

11/19/21

Find constants from given particular solution of a DE

Give DE: x2y'' + bxy' + cy=0, find b and c such that 5x7ln(x) is a particular solutionb) Given x2y'' + bxy' + cy= 6x11 for the values of b and c from part a), find a particular solution

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Precalculus Pre Calculus Pre Calculus

11/19/21

Sinusoidal Function (Word Problem)

At an amusement park, the Ferris wheel has a diameter of 42 ft, and it is positioned 5 feet above the ground. To ride costs 7 tickets, so Charlie wants to time the ride to make sure he gets his... more

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Math

11/19/21

Mathematical Word Problem

Joshua and Logan are not very handy.Joshua can replace the brakes of his car in 3 hours while it takes Logan 5 hours to change his breaks on the same model car. How long would it take them to... more

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Math

11/19/21

f ( x ) = a ⋅ b ^2 passing through (0, 8) and (2, 200)

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Math

11/19/21

Max spent $60 at the store and spent only $54 on fruits. What is the percentage of him only buying fruit?

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Trigonometry

11/19/21

I need help ASAP!!

Let z be the complex number z=2(cos30∘+isin30∘) . a. Write the complex number in standard form. You may give an exact value or a decimal rounded to the nearest thousandth. b. Use DeMoivre's... more

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Trigonometry

11/19/21

For the given vectors u and v, find the cross product u × v. u = 7i − j, v = −7j + k

For the given vectors u and v, find the cross product u × v.u = 7i − j, v = −7j + ku × v =

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Math

11/19/21

A commuter train travels 64 kilometers in 49 minutes. What is the speed in kilometers per hour?A commuter train travels 64 kilometers in 49 minutes. What is the speed in kilometers per hour?

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Trigonometry

11/19/21

The lengths of two vectors u and v and the angle 𝜃 between them are given. Find the length of their cross product, |u ⨯ v|. (Round your answer to three decimal places.)

The lengths of two vectors u and v and the angle 𝜃 between them are given. Find the length of their cross product, |u ⨯ v|. (Round your answer to three decimal places.)|u| = 0.24, |v| = 1.25, 𝜃 =... more

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Trigonometry

11/19/21