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Write down the value of 27^(-2/3)

We are trying to solve 27-2/3. Firstly, using the index rule axy= (ax)y, this can be rewritten as (271/3)-2. Lets tackle the value inside ...

ML
Answered by Matt L. Maths tutor
5310 Views

Describe how the lungs are adapted for gas exchange.

We are going to look at how the lungs are adapted for gas exchange. In humans, we have two lungs. Air passes into the lungs through a tube called the trachea. The trachea splits into two smaller tubes cal...

KG
Answered by Kausar G. Biology tutor
2857 Views

A stationary ball starts rolling down a hill, and after 5s it reaches a speed of 12m/s. From here the ground levels off, and the ball continues at this speed for 3 more seconds. Plot this on a velocity-time diagram.

First we need to draw a velocity-time diagram, which has time on the x-axis, or bottom, and velocity on the y-axis, or left.The ball begins from a stop, so we can draw a dot at (0,0). It accelerates until...

SM
Answered by Sean M. Maths tutor
2237 Views

How would you work out how much money each Fred and Julie get if they share £60 in a 5:7 ratio?

If Fred and Julie share £60 in a 5:7 ratio, Fred will get 5/12ths of the money and Julie will get 7/12ths of the money. All together there will be 12 parts of the money because 5 + 7 = 12So, you need to d...

TS
Answered by Tiegan S. Maths tutor
4247 Views

Expand and simplify: (2x – 3y)(5x + 2y)

10x^2+4xy-15xy-6y^210x^2-11xy-6y^2

KI
Answered by Khansa I. Maths tutor
4212 Views

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