Answer:
true ( i think its been long time)
Step-by-step explanation:
<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.
Answer:
10.0222
Step-by-step explanation:
If he can read 21 pages in 1 hour he can read 63 in 3 hours
Answer:
C.
Step-by-step explanation:
Volume of cylinder = πr²h
= (3.14)(4)(0.75)
= 9.4
Since she'll fill it half so
Amount of water to be filled = 4.7