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Can you explain what a logarithm is?

We can think of taking the logarithm base a of a number b (log a b) as "the number of times we need to multiply a by itself to get b". So for example, log 2 16 = 4, since we need to multiply 2 by i...
DH
Answered by Daniel H. • Maths tutor
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Solve the inequality |x - 2sqrt(2)| > |x - 4sqrt(2)|.

This problem can be solved by squaring both sides of the inequality, as this removes the modulus from the problem. Modulus or | | means that a term can take positive and negative values, which could also be ...
JA
Answered by Jade A. • Maths tutor
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How find the values of x when x^2+8x+16=0?

We can find the values of x for this equation in several ways, we can either use the quadratic formula, complete the square, or see if the equation will factorise. For x^2+8x+16, we will first see whether we...
ES
Answered by Edward S. • Maths tutor
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What is y' when y=3xsinx?

In order to differentiate something like y=3xsinx, you need to make use of the product rule. The product rule says that when you have an equation in the form y=f(x)g(x), you can find y' by using the formula ...
ES
Answered by Edward S. • Maths tutor
9551 Views

If a spinner was spun 50 times and the probability to show the number 2 was 0.2, how many times would it show the number 2?

Start by using the probability equation,th e probability of an event = the number of ways the event can occur/the total number of possible outcomes From the question we know that; the probability of showing ...
AL
Answered by Alice L. • Maths tutor
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