<h2>
Answer with explanation:</h2>
Let p represents the population proportion.
By considering the given information, we have
∵ the alternative hypothesis is two tailed , so the test is two-tailed test.
Given : For sample size :n= 130, 
Test statistic: 
P-value (two -tailed test)=
Since , the p-value (0.131) is greater than the significance level (0.03), so we accept the null hypothesis.
Thus , we conclude that we have sufficient evidence to support the null hypothesis that the true population proportion of Maryland students who have smoked marijuana is 29% .
Answer:
the answer to the first one should be 24.
Step-by-step explanation:
First one ~ 24 is a perfect square which means there is only one factor. if there is only one factor that means that the two sides are equal to each other.
Answer:
x=3/2 (or 1.5)
Step-by-step explanation:
Subtract 3/8 from both sides
Simplify
Subtract 1/2x from both sides
Simplify
Multiply both sides by 4
Simplify
Divide both sides by -3
We know that the parabola opens downwards because it has a negative leading coefficient.
<h3>
</h3><h3>
Why the parabola opens downwards?</h3>
For any polynomial, the leading coefficient is the coefficient in the term where is the large exponent of the polynomial.
The sign of that coefficient will determine the end behavior of the graph of the polynomial.
For the case of the parabola, a positive leading coefficient means that the parabola opens upwards, while a negative leading coefficient will mean that the parabola opens downwards.
Now, if you look at our parabola:
g(x) = -(x + 1)^2 - 3
You can see that there is a negative sign, thus when we expand the parenthesis, we will end up with a negative leading coefficient:
g(x) = -x^2 - 2x + 1 - 3 = -x^2 -2x - 2
So we know that the parabola opens downwards.
If you want to learn more about parabolas:
brainly.com/question/4061870
#SPJ1
Step-by-step explanation:
Bring like terms together
