Answer:
120
Step-by-step explanation:
Blue marbles = 2
Red marbles = 3
Total marbles = 2 + 3 = 5
If a marble is drawn 300 times ;prediction for the number of times a blue marble will be drawn :
P(drawing a blue marble) = number of blue marbles / total number of marbles
= 2 /5 = 0.4
Predicted number of times blue is drawn in 300 selections :
300 * 0.4 = 120
Approximately 120 times
<u>ANSWER:
</u>
Division, multiplication, addition is the correct sequence of operations for solving 
<u>SOLUTION:
</u>
Given, equation is 
We need to solve the given equation in correct sequential order.
So, let us follow the BODMAS rule.
BODMAS means sequence of operations are brackets, orders, division, multiplication, addition, subtraction
Now,

As the term in brackets cannot be processed further we can go for next term.
Now the division operation has to be done first according to BODMAS
- 0.125(x+35)= -7
Multiplication comes second in order.
-0.125x+4.375= -7
On rearranging the terms, we get
-0.125x+4.375+7=0
Now perform addition according to BODMAS
-0.125x+11.375=0
0.125x=11.375

Hence division, multiplication, addition is the correct sequence of operations for solving 
Answer:
The 95% confidence interval for the average number of units that students in their college are enrolled in is between 11.7 and 12.5 units.
Step-by-step explanation:
We have the standard deviation for the sample, so we use the t-distribution to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 45 - 1 = 44
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 44 degrees of freedom(y-axis) and a confidence level of
. So we have T = 2
The margin of error is:

In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 12.1 - 0.4 = 11.7 units
The upper end of the interval is the sample mean added to M. So it is 12.1 + 0.4 = 12.5 units
The 95% confidence interval for the average number of units that students in their college are enrolled in is between 11.7 and 12.5 units.
I don't speak Romanian, but the closest translation for this suggests you're trying to compute

Integrate by parts:

where
u = ln(x)² ⇒ du = 2 ln(x)/x dx
dv = x³ dx ⇒ v = 1/4 x⁴

Integrate by parts again:

where
u' = ln(x) ⇒ du' = dx/x
dv' = x³ dx ⇒ v' = 1/4 x⁴

So, we have





Answer:
$9.57
Step-by-step explanation:
47.83 x 20% = 9.57