For direct variation, y = kx
8 = -4k
k = 8/-4 = -2
Therefore, required equation is y = -2x
when x = 7, y = -2(7) = -14
The probability of choosing one of them is 2 / 80 .
the probability of choosing
the other one is 1 / 79 .
The probability of both things happening is
(2/80) x (1/79) = 1/3160
6 divided by 2 and 1 forths is going to be 8 out of 3
A semicircle is just half of a circle. A circle is 360 degrees, so a semicircle would be 180 degrees. Therefore,
180 * (2/9) = 40 degrees.
Hope this helps!
yes
A general linear expression has the form ax + b → (b is a constant)
summing ax + b + ax + b = 2ax + 2b → ( a linear expression)