Answer:
-w²+49x²-8wx
Step-by-step explanation:
if you want how I did this it's quite lengthy so let me know if you want the process
Answer:
(-12, 2).
Step-by-step explanation:
x^2 + 10x = 24
Divide the + 10 by 2 to give the following identity:
x^2 + 10x is equivalent to (x + 5)^2 - 25 so:
(x + 5)^2 - 25 = 24
(x + 5)^2 = 49
Taking square roots:
x + 5 = +/- 7.
x = -5 + 7 = 2
and x = -5 - 7 = -12.
Answer:
<h2>B] (-10, 0)</h2>
Step-by-step explanation:
The x-intercepts are where the graph crosses the x-axis.
<em>(look at the picture).</em>
<em />
The y-intercepts are where the graph crosses the y-axis.
<em>(look at the second picture)</em>
<h3>(0, -2)</h3>
Answer:
Wilma has $12.
Step-by-step explanation:
Since we don't know how many hours she worked, we know that Wilma earned 9x dollars at her job. Then she spends $15, so we can just subtract 15 from 9x.

We can just replace the x with 3 to get:

Hence, Wilma has $12.
Answer:
5
Step-by-step explanation:
this is what I do, I see how many times 20 can go into 100, that is 5 times. and sense the mystery numbers 20% is 1, you can just leave it at 5. To double check your answer, count 1 5 times. 1 goes into 5 5 times, and 20 goes into 100 5 times.