Answer: 9
Step-by-step explanation:
1- bigger triangles points are (x,12)
Smaller triangles points are (6,8)
Do a proportion
6/8 = X/12
= 9
Answer:
$50 more
Step-by-step explanation:
the mean (average) for a clinic is $150 and a shelter is $100. 150-100 is 50, so it's $50 cheaper
Answer:
So then we expect the 99.7% of the finishing times would be between 68.5 s and 83.5 s for the 400 meters race
Step-by-step explanation:
Let X the random variable who represent the finishing times.
From the problem we have the mean and the standard deviation for the random variable X.
So then the parameters are
On this case in order to check if the random variable X follows a normal distribution we can use the empirical rule that states the following:
The probability of obtain values within one deviation from the mean is 0.68
, within two deviations we have 0.95 and within 3 deviations from the mean is 0.997
And from this rule we have 99.7 % of the values within 3 deviations from the mean, so we can find the limits like this:
So then we expect the 99.7% of the finishing times would be between 68.5 s and 83.5 s for the 400 meters race
Answer:
It should be y=-1/2+(-1)
Step-by-step explanation:
Answer:
The 1st one
Step-by-step explanation: