4n² - 16n - 84 = 0
Multiply both sides by 1/4 :
n² - 4n - 21 = 0
Add 21 to both sides:
n² - 4n = 21
Complete the square by adding 4 to both sides:
n² - 4n + 4 = 25
(n - 2)² = 25
Solve for n :
n - 2 = ± √25
n - 2 = ± 5
n = 2 ± 5
Then n = 2 + 5 = 7 or n = 2 - 5 = -3.
Answer:
Question 6: the slope is 3
Question 7: 5
Question 8: y=3x+5
Step-by-step explanation:
Using rise over run, You can see that it is 3 in rise and 1 in rise. 3/1 is 3. The y-int is 5 because that is where it touches the y-axis. The formula is y=mx+b where m is slope and b is y-int. Sub the other answers in to find the answer. Hope this helps! Pls mark brainliest!
The answer is c because it makes the most sense
1/2 + 1/3 = 1/6 or <span>0.166667</span>
Answer: The slope of the line would be 1.25!
Step-by-step explanation: I'll provide a screenshot of the graph I have made in a second! (:
