Answer:
its the second graph
Step-by-step explanation:
you could use this website to find out graph
desmos calculator
Answer:
a = -5
Step-by-step explanation:
15 - a = 20
Move the constant of 15 to the other side by subtracting it.
-a = 5
Divide by -1 to make a positive.
a = -5
Check.
15 - (-5) = 20
15 + 5 = 20
20 = 20
Considering the period of the cosine function, it is found that it takes 40 seconds for the wheel to complete one turn.
<h3>What is the period of the cosine function?</h3>
The cosine function is defined by:
f(x) = acos(bx + c) + d.
For the period, we have to look at coefficient b, and the period is:
P = 2π/|B|
For this problem, the function is given by:
h(x) = 15 cos(π/20)
Hence B = π/20, and the period is:
P = 2π/|B| = 2π/(π/20) = 2 x 20 = 40 seconds.
Hence it takes 40 seconds for the wheel to complete one turn.
More can be learned about the period of trigonometric functions at brainly.com/question/12502943
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Answer:
what?
Step-by-step explanation:
Do you need help with something?
Answer:
87%>0.25>21%>0.2
Step-by-step explanation:
87% converted to decimal form is 0.87 which is greater than 0.25 and 21% converted to decimal form is 0.21 which is also greater than 0.2 which can also be interpreted as 0.20! Hope this helps!
