300,000+20,000+40
Three twenty thousand, forty
the underground ride is 861 mater long, what isthis number rounded to the nearest 100?
Answer:
861 ≈ 900
There are infinitely many lines that have the point (1,-3).
A line can be expressed as:
y=mx+b, where m=slope and b=y-intercept..
Our only restriction is that it passes through (1,-3) so
-3=1m+b
So as long as the sum of the slope and the y-intercept is equal to -3, that is one of the infinite number of lines that passes through (1, -3)
So we could also say b=-3-m then our infinite lines are:
y=mx-3-m, now any real value of m creates a specific line that passes through the point. ie the first few are
y=x-4, y=2x-5, y=3x-6 or even y=x√2-3-√2
(1/2)(3/6)=1/4
The probability of rolling a head (or tail for that matter is 1/2)
The probability of rolling less than 4 with a die is 3/6)
Thus the probability of both occurring is 1/4
