Question

Q.1 Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know...

Q.1 Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 83 degrees occurs at 6 PM and the average temperature for the day is 65 degrees. Find the temperature, to the nearest degree, at 10 AM. (Answer: degrees)

Q.2 Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 60 and 90 degrees during the day and the average daily temperature first occurs at 10 AM. How many hours after midnight, to two decimal places, does the temperature first reach 71 degrees? (Answer: hours)

Please answer all of the questions!

Homework Answers

Answer #1

1.

with the given details in the problem

Midline (C) is the average is 65 degrees
Amplitude (A) is 83-65=18;
Period = 24 hours;
ω=2π/24;
α=10;

  therefore the temperature is 64.17 degrees
2.

With the information given in this problem,
Midline (C) is the average calculated as: (60+90)/2=75;
Amplitude (A) is 90-75= 15;
Period = 24 hours;
ω=2π/24;
α=10;

Substituting in the equation,
y=15∗sin[2π/24(x−10)]+75

Solving this equation for y=71 gives the value of x as 9.98.

Thus, the temperature first reaches 71 degrees about 9.98 hours after midnight.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature varies between 58 and 72 degrees during the day and the average daily temperature first occurs at 8 AM. How many hours after midnight, to two decimal places, does the temperature first reach 60 degrees?
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 57 degrees occurs at 3 PM and the average temperature for the day is 50 degrees. Find the temperature, to the nearest degree, at 7 AM.    degrees
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 100 degrees occurs at 4 PM and the average temperature for the day is 80 degrees. Find the temperature, to the nearest degree, at 7 AM.
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 72 degrees occurs at 5 PM and the average temperature for the day is 65 degrees. Find the temperature, to the nearest degree, at 6 AM.
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 80 degrees and the low temperature of 50 degrees occurs at 4 AM. Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t. D(t)=
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the...
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the high temperature for the day is 102 degrees and the low temperature of 68 degrees occurs at 3 AM. Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t. D(t)D(t) =
part a.) Outside temperature over the course of a day can be modeled as a sinusoidal...
part a.) Outside temperature over the course of a day can be modeled as a sinusoidal function. If the low temperature for the day is 42°F and the high temperature is 86°F, calculate the amplitude of the model function. part b.) Outside temperature over the course of a day can be modeled as a sinusoidal function. If the low temperature for the day is 42°F and the high temperature is 86°F, what is the midline of the model function?
1.Find a possible formula for the trigonometric function whose values are in the following table. x...
1.Find a possible formula for the trigonometric function whose values are in the following table. x 0 2 4 6 8 10 12 y -2 -5 -2 1 -2 -5 -2 y= 2. A population of rabbits oscillates 21 above and below an average of 103 during the year, hitting the lowest value in January (t = 0). Find an equation for the population, P, in terms of the months since January, t. P(t) = What if the lowest value...
1. A firm production function is given by q(l,k) = l0.5·k0.5, where q is number of...
1. A firm production function is given by q(l,k) = l0.5·k0.5, where q is number of units of output produced, l the number of units of labor input used and k the number of units of capital input used. This firm profit function is π = p·q(l,k) – w·l – v·k, where p is the price of output, w the wage rate of labor and v the rental rate of capital. In the short-run, k = 100. This firm hires...
Q 1 answer the problem A-F a You have $100 to invest. You can buy a...
Q 1 answer the problem A-F a You have $100 to invest. You can buy a 3 year CD that pays 7% interest a year. What is the vaue of the CD at the end of the 3 years b You want to put money in the stock market todayto pay for your child's college costs. She will be going to to college in 18 years and you want to have $250,000 saved by then. You expect to earn 8%...