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Using logarithms solve 8^(2x+1) = 24 (to 3dp)

Using the laws of logs you can see that if you log both sides of the equation you get: (2x+1)*log(8) = log(24) Dividing both sides of the equation by log(8) you get: 2x+1 = log(24)/log(8) Then it is a simple...
GR
Answered by Graham R. • Maths tutor
17522 Views

Statistics: Dave throws a ball at a bucket. The probability the ball goes into the bucket is 0.4. Dave throws the ball four times. What is the probability that he gets it in twice?

When Dave throws the ball, it can either go into the bucket, or miss. The probability of the ball going into the bucket is 0.4 and each throw is independent of eachother so this probability is the same for e...
JW
Answered by Jack W. • Maths tutor
8911 Views

What methods are there for integration?

There are five methods that can help you integrate a function. All these methods do is simplify the expression you're trying to integrate until you are left with something that you can recall what it integra...
CA
Answered by Celine A. • Maths tutor
6311 Views

Solve the simultaneous equations, 5x + 2y = 20 , x + 4y= 13

(Equation 1) 5x + 2y = 20 (Equation 2) x + 4y= 13 As we know the values for x and y are the same in both equations, we can use them to find out the values for both, In order to do this we need to take one eq...
EC
Answered by Ellen C. • Maths tutor
12359 Views

How would I solve x^2 + 7x + 10 = 0

The first step of solving this equation to find out what x is, is to factorise it. This means grouping it into a set of double brackets which will take the form (x+a)(x+b)=0. The a and the b must give the co...
WN
Answered by Will N. • Maths tutor
11150 Views