Answer:
Step-by-step explanation:
The standard form for this function is
y = Asin(Bx - C) + D where
A is the amplitude,
B is used to find the period in the formula 
,
C is used to find the phase shift in the formula 
,
and D is the midline which either moves the function up or down from its natural midline of 0.
We have no given phase shift, so there is no C value. The amplitude is easy; we just fill in A as 4. The period is another story:
and we solve for B by cross multiplying:
3πB = 4π and
so
so the function is
A) She went to the club 8 times in march, and every time she visits, she has to pay $8.25. So you do $8.25 * 8, and you get $66, which is higher than the flat rate of $35.50, hence they will use that value as it is greater.
So the answer is $66.
B) If she doesn't want to pay more than the flat rate, she needs to go the club a certain number of times so it doesn't exceed $35.50. You can work out the nearest value by doing 35.50 divided by 8.25 to find out how many times she can go. This gives you 4.3 something, but you cant go 4.3 times, so the nearest value would be rounded down to make sure it's under $35.50, hence, she can go a maximum of 4 times.
She can go the club a maximum of 4 times in April.
Answer:
5.6
Step-by-step explanation:
took the quiz and got it right
Answer:
2 problems remaining
Step-by-step explanation:
If the ratio is 4:1 or 4 to 1, and the 4 stands for the problems finished we can multiply by 2 for each side to get 8:2 now she has 2 problems remaining!
Hope this helps! Feel free to ask questions as I also feel the pain with doing math! :)
