Answer:
a)
P(X = 0) = 5/10
P(X = 5) = 3/10
P(X = 10) = 2/10
b)
E = 0·5/10 + 5·3/10 + 10·2/10 = 3.5
V = 0^2·5/10 + 5^2·3/10 + 10^2·2/10 - 3.5^2 = 15.25
Answer:
244
Step-by-step explanation:
34
45 x 57 =
(9
slope-intercept form is y = mx + b
3x - 7y = 35
<u> -3x -3x
</u> -7y = -3x + 35 (divide each side by -7)
y = -3/-7x + 35/-7
y = 3/7x - 5
3x/10= 1290
Mutiply by 10 for both sides
3x/10*10= 1290*10
Cross out 10 and 10 , divide by 10 and then becomes 3x
3x=12900
divide by 3 for both sides
3x/3= 12900/3
Cross out 3 and 3 , divide by 3 and then becomes x
x= 4300
Answer: x= 4300
