Answer:
Option C)
Step-by-step explanation:
The samples are dependant. There should be a relation between the weights of the students, even though there could be changes, as any value can go up or down. A student with a weight around of 30 has a higher chance of getting a weight around of 35 after the firts year than a student with weight around of 55. This means that the probability a student has for getting certain amount of weight after the first year may change depending on the weight the student had at the start of the year. You can therefore naturally relate the weight a student had before the first year with the weight the student had after the first year.
So, the samples are dependant because there is a natural pairing between the to samples, as option C says.
2.5
2.33..repeating
4.5
3.33...repeating
the repeating means there is an infinite number of 3's after the decimal
The constant term should be (-5/2)^2 or (5/2)^2 or 25/4. This constant term comes from taking the coefficient on the x^1 term, halving it, and then squaring it.
Answer:
l=102 feet, w=68 feet
Step-by-step explanation:
Let w=width and l=length
P=2l + 2w
And we know that w=2/3l
So, using substitution...
340=2l + 2(2/3l)
340=2l + 4/3l
340=6/3l + 4/3l
340=10/3l (now multiply both sides by 3 to get rid of fraction)
1020=10l
So l=102
Now plug in to get w
2(102)+2w=340
204+2w=340
2w=136
w=68
Now check:
2(102)+2(68)=
204+136=
340 It works!
Answer is $240.00 because 2% of $4000 is 80. Multiply 80 by 3 years and you get $240.00