<u>Answer:</u>
○ 
<u>Explanation:</u>
<h3>What is a quadratic equation?</h3>
A quadratic equation is an algebraic equation where the highest power of 
is 2. The general form of a quadratic equation is as follows:
,
where <em>a</em>, <em>b</em>, and <em>c</em> represent known constants, and is the unknown.
In this question, if you take a look at the second option, you will see that it is possible to rearrange the equation to make it look the general form:
⇒ 
Therefore, this equation is quadratic.
The other three options are not quadratic equations because none of them have an 
term in them.
Notice that the variation of the mean by observing the dot plot alone shows that there is a slight difference in the means but not one that is significant. Therefore, the correct answer is D.
<h3>What is the definition of Mean Difference?</h3>
Mean difference is a statistical term that is used to measure the definite difference between the mean value of distribution among two sets of data.
In this case, the two sets of data are data from the new balls and the data from the old ball.
See the link below for more about Mean Difference:
brainly.com/question/814700
Answer:
Step-by-step explanation:
Divide using synthetic division
Step-by-step explanation:
two sock make one pair ..... so 2 blues socks
Answer:
z = 155 ( second choice )
Step-by-step explanation:
x = 25
65 + 90 = 155
180 - 155 = 25 = x
180 - 25 = 155 = z
