3x^2
+ 2x - 5
- 4 + 7x^2
—————
/combine like terms (3x2 + 7x2, -5 and -4, and 2x is alone so we leave it as it is)
—————
10x^2 + 2x - 9
Answer:
x = 9
Step-by-step explanation:
Well to find x we need to use the commutative property which is the moving of numbers and variables to either side of the equation,
|2x - 19| = 4x + 1
-2x to both sides
|-19| = 2x + 1
Absolute value of -19 is 19
19 = 2x + 1
-1 to both sides
18 = 2x
Divide 2 to both sides
x = 9
<em>Thus,</em>
<em>x is 9.</em>
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<em>Hope this helps :)</em>
Answer:
3. Look at the least amount of time practicing. That is 1/4 hours. Then look at the most time practicing, an hour and a half. Subtract 1 1/2 by 1/4.
4. Look at the dots in the plot. The one in the middle is the highest because it appears the most. The most common time is 3/4 of an hour.
5. To see the total time, add all of the numbers up, including the repeated ones.