Answer:
y=-3.5x^2+9.5x-4
Step-by-step explanation:
y=a*x^2+b*x+c
4=0+0+c => c=-4
2=a+b-4 =>a+b=6
1=4a+2b-4 => 4a+2b=5
2a+b=2.5
a+b=6
a=-3.5
b=9.5
Yes they just have the same amount of decimal points
90%
because 540,000/600,000 = 0.9
and 0.9 multiplied by 100 = 90
<em>Hope this helps!</em>
The answer is 35/12 and simplify that and u get 2 11/12.
To show my work apparently since the mods wont stop deleting my answers, here.
I first found a common denominator and use it to rewrite each fraction. Then I, subtracted the whole numbers and fractions separately.
Use the hypergeometric distribution.
M=number of Men=5
F=number of women=4
m=number of men elected=2
f=number ow women elected=2.
Assuming equal chance to get elected, then
P(2M,2F)=C(M,m)*C(F,f)/C(M+F,m+f)
=C(5,2)*C(4,2)/C(9,4)
=10*6/126
=10/21
Reference: Hypergeometric distribution.
