OML Search

Edexcel Core Mathematics C1 June 2015




 

Questions and Worked Solutions for C1 Edexcel Core Mathematics June 2015.

Related Topics:
More videos, activities and worksheets that are suitable for A Level Maths


Edexcel Core Mathematics C1 June 2015 Past Paper

Core 12 Mathematics Edexcel June 2015 Question 1

Step by Step Solutions for Question 1

Core 12 Mathematics Edexcel June 2015 Question 2

Solve the simultaneous equations
y - 2x - 4 = 0
4x2 + y2 + 20x = 0

Step by Step Solutions for Question 2

Core 12 Mathematics Edexcel June 2015 Question 3

Step by Step Solutions for Question 3

Core 12 Mathematics Edexcel June 2015 Question 4

Step by Step Solutions for Question 4




Core 12 Mathematics Edexcel June 2015 Question 5

The equation
(p -1)x2 + 4x + (p - 5) = 0 where p is a constant
has no real roots.
(a) Show that p satisfies p2 - 6p + 1 > 0
(b) Hence find the set of possible values of p.

Step by Step Solutions for Question 5

Core 12 Mathematics Edexcel June 2015 Question 6

Step by Step Solutions for Question 6

Core 12 Mathematics Edexcel June 2015 Question 7

Given that y = 2x,
(a) express 4x in terms of y.
(b) Hence, or otherwise, solve
8(4x) - 9(2x) + 1 = 0

Step by Step Solutions for Question 7

Core 12 Mathematics Edexcel June 2015 Question 8

(a) Factorise completely 9x - 4x3
(b) Sketch the curve C with equation
y = 9x - 4x3
Show on your sketch the coordinates at which the curve meet the x-axis.
The points A and B lie on C and have x coordinates of -2 and 1 respectively.
(c) Show that the length of AB is k√10 where k is a constant to be found.

Step by Step Solutions for Question 8

Core 12 Mathematics Edexcel June 2015 Question 9

Jess started work 20 years ago. In year 1 her annual salary was £17000. Her annual salary increased by £1500 each year, so that her annual salary in year 2 was £18500, in year 3 it was £20000 and so on, forming an arithmetic sequence. This continued until she reached her maximum salary of £32000 in year k. Her annual salary the remained at £32000.
(a) Find the value of the constant k.
(b) Calculate the total amount that Jess has earned in 20 years.

Step by Step Solutions for Question 9

Core 12 Mathematics Edexcel June 2015 Question 10

Step by Step Solutions for Question 10


 

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


OML Search


We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.


[?] Subscribe To This Site

XML RSS
follow us in feedly
Add to My Yahoo!
Add to My MSN
Subscribe with Bloglines