Answer:
The equation is given by:
Step-by-step explanation:
Sine function:
Has the following format:
In which A is the amplitude and 
is the period.
Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 89 and 71 degrees
This means that the amplitude of the sinusoidal variation function is 89 - 80 = 80 - 71 = 9. This means that 
During a 24-hour day, which means that the period is 24. So
So the variation is:
Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.
Initial temperature of 80, so:
The number of goldfish in the pet store is equal to 60 fishes.
<u>Given the following data:</u>
- Total number of fishes = 150 fishes.
To calculate the number of goldfish that the pet store have:
<h3>What is ratio?</h3>
Ratio can be defined as an expression that is used to denote the proportion of two (2) or more quantities with respect to one another and the total quantities.
Mathematically, the number of goldfish in the pet store is given by this expression:
G = 60 fishes.
Read more on ratio here: brainly.com/question/13513438
<span>f(x)= -2x +1 for f(3)
f(3) = -2(3) + 1 = -5
answer
</span><span>A)-5</span>
Answer:
A
Step-by-step explanation:
