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Make a the subject of: (a+3)=(2a+7)/r

Equation: a+3 = (2a+7)/r

First, we want to rearrange the equation, so that the 'r', which is the denominator of the right hand side, multiplies with (a+3), creating r(a+3) = 2a+7. ...

JM
Answered by Jana M. Maths tutor
12834 Views

"The title of a poem almost always offers the audience something signi cant to their reading and understanding. In the work of at least two poets you have studied, show how titles have affected your interpretations of the poems"

The key to answering this question is dissecting what it is asking - essentially how the titles of two poems relate to the content of the poems. For example, if the title had melancholic connotations and ...

FF
Answered by Finn F. English tutor
2607 Views

A ball is hit horizontally at a height of 1.2 m and travels a horizontal distance of 5.0 m before reaching the ground. The ball is at rest when hit. Calculate the initial horizontal velocity given to the ball when it was hit.

Vertically: u=0 ms-1  s=1.2 m  a=9.8 ms-2 s=ut + 0.5at2 Therefore t = 0.49s Horizontally: t=0.49s  s=5.0m speed = distance/time = 5.0/0.49 = 10.2 ...

WW
Answered by William W. Physics tutor
2903 Views

Given that y = 4x^3 – 5/(x^2) , x =/= 0, find in its simplest form dy/dx.

We are given: y = 4x^3  – 5/(x^2) To find the dy/dx we are going to use the power rule, from the power rule differentiating x^n gives n*x^n-1, so from our equation differetiating x^3 will give 3x^2, but w...

MA
Answered by Mohamed A. Maths tutor
5028 Views

Explain why a firm in Perfect Competition earns supernormal profits in the short-run

A perfectly competitive market is a market where a large number of firms produce identical products (perfect substitutes). The characteristics that define perfect competition are the following: - no barri...

NV
Answered by Nora V. Economics tutor
19424 Views

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