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andrxxa
Username
andrxxa
Score
17
Stats
Questions
1
Answers
0
4 Questions
0 Answers
+1
269
1
+17
help asap please!
I have no idea:
David drove a distance (d) of 187km, to 3 significant figures. He used 28 litres of petrol (p), to 2 significant figures.
The petrol consumption (c) in km per litre is given by the formula: c= d/p
By considering bounds, work out
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andrxxa
Dec 13, 2018
0
192
1
+17
i made a mistake on my question from before: i meant 5 not 25! sorry!! thanks again!
i made a mistake on my question from before: i meant 5 not 25! sorry!! thanks again!
prove algebraically that the straight line with the equation x = 2y + 5 is a tangent to the circle with equation x^2 + y^2 = 5
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andrxxa
Sep 27, 2018
0
146
1
+17
i need help asap! thanks again!
i need help asap! thanks again!
prove algebraically that the straight line with the equation x = 2y + 5 is a tangent to the circle with equation x^2 + y^2 = 25
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andrxxa
Sep 27, 2018
0
196
1
+17
i need help asap! thanks
i need help asap! thanks
27 x 9^(3x) can be written in the form 3^k where k is an expression in terms of x
find k
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andrxxa
Sep 25, 2018