Answer:
(3, 1 )
Step-by-step explanation:
The solution to a system of equations give graphically is at the point of intersection of the 2 lines.
The point of intersection is (3, 1 )
Thus solution is (3, 1 )
Answer:
25%
Step-by-step explanation:
Great question, since a regular coin has two sides one heads and one tails. That gives us a 50% probability of it landing on either side of the coin. Since we would like to know the probability of getting 2 heads in a row, we would need to multiply the probability of the first toss landing on heads with the second toss landing on heads, like so...
So we can see that the probability of us getting two heads in a row is that of \frac{1}{4}[/tex] or 25%.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
C
Step-by-step explanation:
neither.
linear equations have constant slope. They take on the form of something like y= mx + b
exponential equations have a variable in the exponent. An example of this y= 3^x.
This is a polynomial equation - specifically a quadratic.
given,
f(x)=x^2 +2
now
f(-x)=(-x)^2 +2 = x^2 +2= f(x)
since f(-x)=f(x)
the given function is even
Answer:
Since the p value obtained for this case is a very low value we have enough evidence to reject the null hypothesis that the true mean is equal to 180 at many of the possible significance levels commonly used. So then makes sense the claim that the true mean for the weigth is different from 180
Step-by-step explanation:
Information provided
represent the mean weight
represent the sample standard deviation for the weight
sample size
represent the value to compare
t would represent the statistic
represent the p value
System of hypothesis
We want to determine if the true mean weight is different from 180 pounds, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
We don't know the population deviation for the variable of interest so then the statistic is given by:
(1)
Replacing the data given we got:
Now we can find the p value but first we need to find the degrees of freedom given by:
Since we are conducting a two tailed test the p value can be calculated on this way:
Since the p value obtained for this case is a very low value we have enough evidence to reject the null hypothesis that the true mean is equal to 180 at many of the possible significance levels commonly used. So then makes sense the claim that the true mean for the weigth is different from 180