Step-by-step explanation:
Total marbles = 9 + 4 + 3 + 2 = 18
Probability of both red marbles = 3 / 18 = 1/6
It is 12 because there are 180 degrees in a set of supplementary angles and 12 times 10 equals 120, plus 60 equals 180.
Answer:
x=-3+√19, x=-3-√19
Step-by-step explanation:
x^2+6x=10
x^2+6x-10=10-10
x^2+6x-10=0
a=1 b=6 c=-10 - use the quadratic formula
x=-3+√19, x=-3-√19
I hope this helps!
So the answer to this equation is 9
to find the answer we first need to substitute the x for 1
so the equation would be 4×1^2+5*1
so now we simplify the equation so it would be 4+5×1
and 4+5*1 simplified is 4+5
and 4+5=9
