Answer: SECOND OPTION
Step-by-step explanation:
You can solve the system of equations by the method of substitution:
- You must susbtitute the second equation into the first equation and solve or x:
- Now, you must susbtitute the value of x obtained above into the second equation to calculate the value of y. Then, you have:
Therefore, you obtain:
(
)
Answer:
<u>The patient is going to drink 14 pints of medicine over a week</u>
Step-by-step explanation:
1. Let's review all the information provided to answer the question correctly:
Amount of medicine the doctor told his patient to drink over a week = 3 1/2 cups
1 full cup = 4 pints
2. How much is the patient going to drink over the week?
For answering this question, we multiply this way:
3 1/2 = 3.5
3.5 * 4 = 14
<u>The patient is going to drink 14 pints of medicine over a week</u>
The function is defined only if 
. So, the leftmost point is 
, and we have
So, the first point is 
The three additional points seem arbitrary, so let's choose 
. We have:
So, the second point is 
So, the third point is 
So, the fourth point is 
We can use two different methods to find our missing angle:
Subtract the two known angles from 180° :
Plug the two angles into the formula and use algebra: a + b + c = 180°
Answer:
Due to there being no negatives in this equation, you can pretty much just eliminate the first 3 answers.
However in working out, here is what I did.
x^2 + x - 30 = 12 (+30)
= x^2 + x = 42
Then you can conclude that the answer is D, due to 6 x 6 = 36, plus 7 equaling 42.
