Yes, this is all correct!
1/20 is the fraction that you'll have left
Answer + Step-by-step explanation:
<u>the conditional statement</u> :
For two positive integers n and m,
nm = 4 ⇒ (n = 1 or m = 1) or (n=m= 2)
<u>the contrapositive</u>:
(n ≠ 1 and m ≠ 1) and (n ≠ 2 or m ≠ 2) ⇒ nm ≠ 4
<u>Prove the conditional by proving the contrapositive</u> :
Suppose
m ≠ 1
and m ≠ 2
and n ≠ 1
⇒ nm ≠ 1 × n and nm ≠ 2 × n and n ≠ 1
⇒ nm ≠ 4 (because 4 = 4 × 1 or 4 = 2 × 2)
<u>Conclusion</u>:
The contrapositive is true then conditional is true.
The standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values from the mean.
A low standard deviation indicates that the data points tend to be close to the mean of the set, while a high standard
deviation indicates that the data points are spread out over a wider
range of values.
Therefore, the <span>measure of variation that is preferred when the mean is used as a measure of center is standard deviation.</span>
Answer:
60 rev/min (Answer D)
Step-by-step explanation:
Calculate it!
2400 revolutions
-------------------------- = 60 rev/min
40 minutes
