The x-value corresponds to a y-value of 1 is π
Step-by-step explanation:
The given is:
- y = - cos x
- y = 1
- 0 < x < 2π
We need to find x when y is 1
∵ y = - cos x
∵ y = 1
∴ 1 = - cos x
- Multiply both sides by -1
∴ -1 = cos x
- Switch the two sides
∴ cos x = -1
- Use the inverse of cos to find x
∴ x = 
∵ cos(π) = -1
∴ x = π
The x-value corresponds to a y-value of 1 is π
Look to the attached graph for more understand
<em>The graph of y = 1 intersects the graph of y = - cos x at x = π from 0 to 2π</em>
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You can learn more about the trigonometry equations in brainly.com/question/1599828
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Answer: W
Step-by-step explanation: I remember learning this in school> you can tell it’s a function because no numbers repeat themselves etc .
I posted the answer over here
26.5 goes in the first box
The answer is 689.
The equation that could be used to determine L, the unknown side length of the logo is A =2.5w
<h3>How to determine the equation?</h3>
The given parameters in the question are:
- Shape: Rectangle
- Height of logo, h = 2 1/2 feet
From the question we understand that the area is at maximum.
Represent this area with A
The area of the rectangle is:
A = h * l
Where h and l are the dimensions of the rectangle.
Substitute 2 1/2 for h
A = 2 1/2 * l
Express 2 1/2 as a decimal number
A = 2.5 * l
Evaluate the product
A =2.5l
Hence, the equation that could be used to determine L, the unknown side length of the logo is A =2.5w
Read more about areas at:
brainly.com/question/24487155
