<span>What number must you add to complete the square x^2 + 12x = -3?</span>
Make sure to always check your answers, by the way!
The answer is: (x + 6)² - 33
Hope I helped!
Let me know if you need anything else!
~ Zoe
Answer:
5n - 7 < 23
Step-by-step explanation:
The picture is too blurry to read.
Answer:
The system has one solution.
Step-by-step explanation:
We have two equations:
y = -2x - 4
y = 3x + 3
Equalling them:
y = y
-2x - 4 = 3x + 3
5x = -7
And
Replacing in the other equation we should get the same result.
So the system has one solution.
Let n be the amount of time it takes william to cut the lawn. Then Shelly takes
n-2 hours. So:
1/n+1/n-2=1/3
3(n-2)+3n=n²-2n
6n-6=n²-2n
n²-8n+6=0
Using the quadratic formula, we get a positive value of 7.1623 hrs as the amount of time william takes working alone, and 5.1623 as the amount of time Shelly takes working alone
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