Answer:
11 degrees.
Step-by-step explanation:
-2 + 13 = 11 Good luck man! :)
the domain:
the equation:
4 is in the domain
-2 is not in the domain
The answer:
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Also, the answer in 13 is {8}. -3 is not in the domain. Replace x with -3 and you'll see:
It's not true so -3 isn't a solution to this equation.
Answer:
No he placed the numbers incorrectly
Step-by-step explanation:
When following the slope formula, its the y values on top, in this ,
#1 it will bee $15.25 per hour
#2 speed = distance/time
speed = 744/3
speed = 248 miles per hour
% acid=[amount of acid / (amount of solution (acid + water))]*100
Data:
We have 5 gallons of a 20% acid solution:
amount of acid=20% of 5 gallons=(20/100)(5 gallons)=1 gallons
water amount=80% of 5 gallons=(80/100)(5 gallons)=4 gallons.
x=amount of pure acid (gallons).
(5+x)=amount of solution.
(1+x)=amount of acid in 50% solution
We have this equation:
50%=[(1+x) / (5+x)]*100%
(1+x)/(5+x)=50%/100%
(1+x)/(5+x)=1/2
2(1+x)=(5+x)
2+2x=5+x
2x-x=5-2
x=3
Answer: we need 3 gallons of pure acid.
