Answer:
Step-by-step explanation:
Factor the Polynomial.
3
x
4
(
x
+
5
)
2
Answer:
y = 20x + 25
Step-by-step explanation:
y is the total
25 dollars to start plus the 20 dollars per month
We know that 15 elves represent the 20% of the total.
Since 20% is one-fifth, the total number of elves is
Alternatively, solve the proportion
which yields
Answer:
NO.
Step-by-step explanation:
The Professor's hypothesis:
An introductory course in Logic will affect college students with their other studies (will affect their Great Point Average - GPA).
25 students are used as the experimental group while the rest of the class are the control group.
The mean GPA in a sample size (SS) of 6 is = 2.58
The mean GPA in the full sample size of 25 would be = 10.75 by crossmultiplying.
This makes me believe the question was written wrongly. I assume SD (standard deviation) of 0.6 instead of SS (sample size) of 6.
Going by this, if standard deviation is 0.6 then the interval within which the GPA of the experimental group (the 25 students) falls is:
[2.58 - 0.6] to [2.58 + 0.6]
= 1.98 to 3.18
The rest of the graduating class (the control group) had a mean GPA of 2.33
Can the professor conclude that the GPA for the sample is significantly different from that of the control group?
The answer is NO because the GPA of the control group falls within the GPA interval of the experimental group!
2/3 would be converted to 4/6 by multiplying the numerator and denominator by 2.
then you can add 4/6 + 1/6 to get 5/6