Answer:
The solutions are and
Step-by-step explanation:
we have
Divide by both sides
------>
we know that
The formula to solve a quadratic equation of the form is equal to
in this problem we have
so
substitute
$376.25 tax added on is $26.25
Answer:
1
Step-by-step explanation:
We have the function
and we want to know the value of .
The first step is to find ; we can subtract 1 from it at the end! But what does mean?
Basically, we're saying <em>"what is the value of the function when </em><em> ?"</em>
So, we simply replace with 3 in the function, and we get:
.
Finally, we subtract 1 to find .
The area of a circle is area = pi x r^2
The full area = 3.14 x 20^2 = 1256 square feet.
The corner forms a 90 degree angle so the dirt area is 3/4 of a full circle.
Answer = 1256 x 3/4 = 942 square feet
<em>Ohhh, interest problems. I haven't done an equation like this in a long time, but I will attempt.</em>
<em>I would say that the answer is the 2nd option. The equation is i = (5200)(0.06)(2.5).</em>
<em>The traditional interest formula is I = (P)(R)(N).</em>
<em>P = the original amount of money given</em>
<em>R = interest rate</em>
<em>N = the amount of time</em>
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<em>I hope this answers your question (and that I understood the question correctly!).</em>
<em>-Toremi</em>