The width is 42 inches. If you add 42+42+30+30, it equals 144. (l+l+w+w)
X = [-b +- sqrt(b^2-4ac)]/2a
Answer:
Step-by-step explanation:
4+(7-5)2= 8 I guess
The repeating decimal is 4.142857149
For the answer to the question above asking to e<span>xplain why the events "getting a black marble" and "getting a red marble" are mutually exclusive.
</span>A marble can have only one color, so you cannot choose a marble that is both black and red. Therefore the events are mutually exclusive (cannot happen simultaneously)