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Alice will play 2 games of tennis against Bob. Alice’s chances of winning each game is 0.7. Work out the probability of Alice winning exactly one match.

The chances of Alice winning a game is 0.7, therefore the chances of Bob winning a game is 0.3. To work out the probability of Alice winning exactly one game, the probabilities of Alice winning once and Bob ...
CG
Answered by Charlie G. • Maths tutor
4262 Views

Simplify fully the following equation: X^2-2x-15/2x^2-9x-5

We first need to simplify both the numerator and denominator of this fraction seperately. Let's start with the numerator: x^2 -2x -15We need to find two numbers that add to make -2 and multiply to make -15. ...
EP
Answered by Emilia P. • Maths tutor
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Solve 3x-8=19

3x - 8 = 193x = 19 + 83x = 27x = 27 / 3x = 9
MA
Answered by Mishelle A. • Maths tutor
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A cylinder has a radius of 4 cm and volume of 800 cm3. A similar cylinder with the same height has a volume of 200 cm3. Find the radius of the smaller cylinder.

Firstly, we have to understand how the radius of the first cylinder was used to calculate its volume. Then we can use that understanding to then use the information we have about the other cylinder to calcul...
ME
Answered by Mika Erik M. • Maths tutor
3287 Views

Can you explain how to find straight line equations?

Straight line equations always come in the form y=mx+c, where m is the gradient of the line (how steep it it) and c is the point where the line crosses the y axis (the y intercept).If you are given two point...
JQ
Answered by Judy Q. • Maths tutor
2874 Views