Step-by-step explanation:
thr standard form for a quadratic equation is:
ax²+bx+c
in this example, a=1, b=(-1), c=(-42)
Answer:
x = -9
Step-by-step explanation:
-4x = -1/2(10x + 18)
Distribute
-4x= - 5x -9
Add 5x to each side
-4x+5x = -5x+5x -9
x = -9
The coefficient in (2/3q-3/4) is 2/3 and in (-1/6q-r) is -1/6
We have 3 children, with each one possibly being a boy or a girl. And so for each child, the probability of being a boy is 1/2 same with a girl so
1/2^3 = 1/8
so it's 1/8 chance of it being a boy.