42 - -84=-42
Hope this helps :)
Answer:
6.3
Step-by-step explanation: Divide 7 by 10 and get .7 then you would multiply that by 9 and youll get 6.3
Answer:
y > 24 − 3x
Step-by-step explanation:
Step 1: First, you need to factor out the common term 2.
2 (3x + y) > 48
Step 2: Then, you divide both sides by 2.

Step 3: Next, you have to simplify
into 24.
3x + y > 24
Step 4: Lastly, subtract 3x from both sides and you're done!
y > 24 − 3x
The variance for this activity is mathematically given as
Var=0.026
<h3>What is the variance for this activity?</h3>
A data set's variance may be seen as a measurement of the spread that exists between the individual integers. When evaluating the asset allocation of a portfolio, investors employ an expression known as the variance equation.
After careful consideration of the table given in the question, we have that
Pessimistic time tp=2
optimistic time to=1
most likely time tm=1.5
Generally, the equation for variance is mathematically given as

Therefore

Var=0.026
In conclusion, the variance for this activity
Var=0.026
Read more about variance
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