Answer:
38/5
Step-by-step explanation:
15 x 3 = 45 + 3 = 48/15
then 4 + 5 = 20 + 2 = 22/5
22/5 + 48/15 = ?
find the common denominator
15 ÷ by 3 so you do the same to the numerator so, 48 ÷ 3 = 16
then keep the 22 and 16 and put it as 16/5 and 22/5 and add them to get 38/5
hope this helps
1st, 3rd,4th, and 5th should all be right
Your picture is a just a black screen
The windmill's blade measures 7 feet in length.
<h3>
What is an equation?</h3>
- An equation is a formula in mathematics that expresses the equality of two expressions by connecting them with the equals sign =.
To find the measure of the windmill's blade:
- We have the equation:

- At the time 't' = 0, the end of the blade is parallel to the ground and pointing to the right, indicating that it is the same height as the other end. (Ф = 0°)
- We may calculate the length of the blade by calculating the greatest height of this end at = 90°.
- We now know that the general model equation of a circular simple harmonic motion is written as follows: y = A sinωt + k
- Where A is the maximum displacement from mean to maximum position
- The angular frequency is ω.
- When eq1 and eq2 are compared:
- A = 7
- As a result, the difference in blade end height at = 0° and = 90° is 7 feet.
Therefore, the windmill's blade measures 7 feet in length.
Know more about equations here:
brainly.com/question/2972832
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The correct question is given below:
The equation h=7sin(pi/21t)+28 can be used to model the height, h, in feet of the end of one blade of a windmill turning on an axis above the ground as a function of time, t, in seconds. How long is the blade? Assume that the blade is pointing to the right, parallel to the ground, at t = 0, and that the windmill turns counterclockwise at a constant rate. 7 feet 14 feet 21 feet 28 feet
Answer:
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Step-by-step explanation: