3x + 2y = 10 2x + 3y = 15/2
1 answer:
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8:00 a.m all the way until 2:00 p.m.
8:00 a.m. to 12:00 p.m is 4 hours.
12:00 p.m. to 2:00 p.m is 2 hours
8:00 a.m. to 2:00 p.m. is 6 hours.
6 hours out of a 24 hour day.
The school holds classes for 25% of the 24-hour day.
8:00 a.m. to 12:00 p.m is 4 hours.
12:00 p.m. to 2:00 p.m is 2 hours
8:00 a.m. to 2:00 p.m. is 6 hours.
6 hours out of a 24 hour day.
The school holds classes for 25% of the 24-hour day.
Answer:
See Below.
Step-by-step explanation:
We want to show that the function:
Increases for all values of <em>x</em>.
A function is increasing whenever its derivative is positive.
So, find the derivative of our function:
Differentiate:
Simplify:
Since eˣ is always greater than zero and e⁻ˣ is also always greater than zero, f'(x) is always positive. Hence, the original function increases for all values of <em>x.</em>