Answer:
c
Step-by-step explanation:
you know that since it's a solid line it has to be at least equal to then by that put it in a graphing calculator to find which direction the shades portion is (btw I'm not extra sure but I hope this helps)
What are the dimensions of a 72in television with a 16:9 aspect ratio
1 answer:
Answer:
Height is 35.3 inches.
Width is 62.8 inches.
Dimensions are 62.8 by 35.3.
Step-by-step explanation:
We can solve this problem using some simple trigonometry.
First, we need to calculate the angle of the corner to corner line relative to the base. We use tan⁻¹ to solve for this.
tan⁻¹()
29.35775354°
We can now use this angle to find the side length to hypotenuse ratios. First, we will find the height using sine.
sin is
= sin(29.35775354°) --- plug in known info
= 0.4902612396 --- solve
x = 0.4902612396 × 72 --- multiply both sides by 72
x = 35.29880925
Height is 35.3 inches.
Now, we can solve for the width using cosine.
cos is
= cos(29.35775354°) --- plug in known info
= 0.8715755371 --- solve
w = 0.8715755371 × 72 --- multiply both sides by 72
w = 62.75343867
w = 62.8 inches
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Given:
Amplitude = 2
Midline = 5
Period of .
To find:
The cosine function.
Solution:
The general cosine function is:
...(i)
Where, |A| is amplitude, is period,
is phase shift and D is the mid line.
Period of function is . So,
Substituting in (i), we get
Therefore, the required cosine function is .