The gradient of x axis is zero. As such, the gradient of the line parallel to x-axis can only be zero
a) FALSE (would be TRUE if it said LN(56)-LN(7)=LN(8))
b) TRUE (because LN(x+y)-LN(x+y)=LN[(x+y)/(x+y)]=LN(1)=0)
Answer: It is the quotient of 21 times and number and 8.
The perimeter of a triangle is found by adding all the three sides.
Let's call the third side "x"
So,
6+9+x = 23
15+x = 23
x = 8
If you add the whole number to the whole number part of the mixed number, and then add the fraction from the mixed number on to the end of that, you get a new mixed number which is your answer.
