Answer:
-6
Step-by-step explanation:
-72/12=-6
<h3>
Answer: Invalid</h3>
Explanation:
The conclusion should be due to the hypothetical syllogism rule (similar to the transitive rule).
You can make a truth table to show that the premises and can both be true at the same time, but the conclusion is false. Whenever you have all true premises and a false conclusion, then the argument is invalid. True premises must lead to a true conclusion.
Y-(-5)/x-(-18)=-2/9
9y+45=-2x-36
9y=-2x-36-45
y=-2/9x-9
340 = 100%
34 = 10% (Divide 100% digit by 10 to get 10%)
102 = 30% (Multiply 10% by 3)
340 + 102 = 442 ( To get 130%, which is 100% with the 30% increase)
442 = 130%
Hope this helped!
Answer: 75% of the rate lies in 47 per month and 55 per month.
Step-by-step explanation:
The mean rate for a satellite television from a sample of households was $51.00 per month, with a standard deviation of $2.00 per month.
According to the Chebychev's Theorem, atleast % of the data lies within k standard deviation from the mean.
For k=2
Alteast 75% of data lies within 2 standard deviation from mean.
i.e. 51-2(2) per month and 51+2(2) per month
i.e. 47 per month and 55 per month
Hence, 75% of the rate lies in 47 per month and 55 per month.