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Solve the quadratic equation: x^2 - 2x - 15 = 0

To solve this, you need to find two factors of -15 that total to give -2. The solution we're looking for is of the for (x + something) (x + something)=0, as you can then solve each bracket to get two results...
JH
Answered by James H. • Maths tutor
5860 Views

What is the value of tan(45)?

From our base right angled triangle (base and height of 1) and remembering SOH CAH TOA ( tangent = opposite/adjacent), we can deduce tan(45) = 1 / 1 = 1
BS
Answered by Bernardo S. • Maths tutor
6575 Views

‘The Depression was the main reason that Hitler became Chancellor of Germany in January 1933.’ How far do you agree?

The Depression was an important reason why Hitler became Chancellor of Germany in 1933. First of all, the Depression had a negative economic impact on Germany. This meant the Nazis were able to increase thei...
JD
Answered by Jake D. • History tutor
33455 Views

Discuss the representation of women in Shakespeare's Hamlet.

First of all, let's look at how many female characters there are in Shakespeare's tragedy; two. This is a play governed by men. Both Ophelia and Gertrude say very little, which adds to the overwhelming sense...
OD
5598 Views

There are 720 boys in a school and 700 girls. The probability that a girl chosen at random studies french is 3/5 and the probability that a boy chosen at random studies french is 2/3. What is the total number of students in the school that study french?

The probability that a girl chosen at random studies french is 3/5. This means that out of 700 girls at the school, three fifths (3/5) girls study french. To find out how many girls study french we must find...
ZP
Answered by Zoe P. • Maths tutor
4098 Views