Answer:
It’s B and E. I took the quiz and got it right
Step-by-step explanation:
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:
MN = 36
Step-by-step explanation:
You can find a ratio between the two triangles based on what you're given.
If LM ~ OP the ratio is 42/14 which = 3
So if MN ~ ON and ON = 12, 12(3) = 36
Answer:
There are 9 nickels and 11 pennies
Step-by-step explanation:
Systems of equation:
x=nickels
y=pennies
0.56=0.05x+0.01y
x+y=20
Answer:380
Step-by-step explanation:
500-120=380
