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Write down the value of 36^ 1/ 2

Square root of 36 = -6,6
IA
Answered by Isra A. • Maths tutor
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Simplify the following: 5(x+2) - 3(6-x)

Expand the brackets to get:= 5x + 10 - 18 + 3xThen collect like terms:= 8x-8Take out a common factor:= 8(x-1)
RH
Answered by Rebecca H. • Maths tutor
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I toss a fair coin until I get two head in a row. What is the probability that I toss the coin 5 times in total?

In order to satisfy the condition, must have the 4th toss and 5th toss both being heads. Note that the 3rd toss must be tails as otherwise we would terminate the coin tosses prematurely. This leaves the firs...
JX
Answered by James X. • Maths tutor
2964 Views

How to draw two linear lines and find where they cross without using the graph.

So, for a standard liner function, Y=mx+c, where Y is the output, m is the gradient or slope of our line, x is the input value and c is our y-intercept, where our line crosses the Y-axis. So, we have two equ...
SW
Answered by Samuel W. • Maths tutor
3170 Views

Solve: x^2 + 2x - 3 = 0

(x 2 +2x - 3) = 0 We need to find 2 numbers that multiply to make -3 and add to make 2. Once we have found them we can use them to find the solutions to the quadratic. Answer = (x+3)(x-1) = 0 therefore x = -...
JB
Answered by Joshua B. • Maths tutor
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