Answer:
x²+8x-65=0
Step-by-step explanation:
The equation to be used is
A=side²
The increased side = X
(4+x)² =81
x² +4x+4x=16=81
x²+8x+16-81=0
x²+8x-65=0
Answer:
5
Step-by-step explanation:
You would add all the numbers together and then divide it by how many numbers there are
The critical value is the z-score right at the edge of the rejection region option (A) is correct.
<h3>What is a normal distribution?</h3>
It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.
It is given that:
The z-score is right at the edge of the rejection region.
As we know, the rejection zone is the area in which we have sufficient data to reject the null hypothesis if our test statistic falls within it.
Thus, the critical value is the z-score right at the edge of the rejection region option (A) is correct.
Learn more about the normal distribution here:
brainly.com/question/12421652
#SPJ1
Answer:
b
Step-by-step explanation:
:)
Answer:
(3x+2)(x+5)
Step-by-step explanation:
