To start, we need to distribute
multiply 2x by <em>everything</em> in the parenthesis
2x (5 + 3x) - x
2x × 5 = 10x
2x × 3x = 6x²
now we have...
10x + 6x² - x
<em>simplify </em>
<u>6x² + 9x </u>
the coefficient of x is 9!
Answer:
π (or 270°)
Step-by-step explanation:
I use the trick with the coordinates.
(0, -1)
cos270° = 0 (the x-coordinate)
sin270° = -1 (the y-coordinate)
This trick works depending on the radius.
Using the percentage concept, it is found that 60% of the students voted to donate a telescope.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

In this problem:
- The total amount is the number of students, which is of b = 500.
- 300 voted to donate, hence a = 300.
The <em>percentage </em>is given by:

60% of the students voted to donate a telescope.
More can be learned about the percentage concept at brainly.com/question/10491646
Given:
One lap around a parking lot = 3/10 mile
3/10 mile is 15% of the total distance Gregory ran.
To determine the total distance (in mile) that Gregory ran, we refer to the given percentage:
3/10 mile / 0.15 = 2 miles
The total distance that Gregory ran is 2 miles. <span />
Obviously the Correct Step would give him the correct answer lol !
But, here he goes !!



✓ So, h = 5 ; k = 11 would make him correct