Pls help I don’t understand

Mathematics

2 answers:

mart [117]3 years ago

4 0

Answer:

6+3n - 10-4

Step-by-step explanation:

the parentheses mean distributive, so you would multiply the outside numbers (3 and 2 in your case) by the numbers inside the parentheses. so 3*2=6, and 3*n=3n.

2*5=10, and 2*-2n=-4n.

jenyasd209 [6]3 years ago

3 0

Answer:

What grade are you in?

Step-by-step explanation:

You might be interested in

Suppose task B follows task A. The likelihood that a problem will occur with task A is 0.5, and the time to correct the problem

jasenka [17]

Answer:

The risk consequence of both activities is 1.6 months.

Step-by-step explanation:

We can define a randome variable D: total delay time for the project, and calculate its expected value.

This would be the risk consequence of both activities.

The expected delay time for the project is the sum of the expected delay for task A plus the expected delay for task B. It is assumed the likelihood of a problem in any task is independent of the other.

Then, each expected delay for a task is equal to the probability of a problem multiplied by the consequence (delay time).

$E(D)=E(D_a)+E(D_b)=p_aT_a+p_bT_b\\\\E(D)=0.5*2+0.2*3=1+0.6=1.6$