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stich3 [128]
2 years ago
6

Consider f(x)=cos^2x+2cosx over one complete period beginning with x=0

Mathematics
1 answer:
Evgen [1.6K]2 years ago
3 0
Period is from 0 to 2pi

take the deritivive then take it again
we get f''(x)=-4cos²(x)-2cos(x)+2


it is negative between 0 and pi/3 and also between 5pi/3 and 2pi

concave down in the interval
[0, \frac{ \pi }{3}] U [\frac{ 5\pi }{3},2\pi]
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Eli had $10 but he lost some of it. He mom doubled the money he had left. Eli wrote the expression 2(10-k) how much money he has
bezimeni [28]

Answer:

Step-by-step explanation:

According to the first expression:

2(10-k): where,

2:shows the double amount of money which ELI has

10:shows the amount of money which ELI had at the starting.

k:shows the amount of money which is lost.

10-k:shows the amount of money which ELI has after losing some amount.

According to the second expression:

20-2k where,

20:shows the twice of initial amount.

k: is the amount of money which is lost

2k:s hows the twice of amount which is lost

20-2k: shows the amount of money which is left with ELI after his mom gave him some money....

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2 years ago
The following histogram summarizes the number of points Nate has scored each game this season.
Ludmilka [50]

Answer:8/25

Step-by-step explanation:

7 0
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Renting a truck costs $55.00 per day and $0.38 per mile when the driver goes beyond the 40 free miles allotted. How much would S
solmaris [256]
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I hope this was helpful and if so, please leave a good rating and thanks and maybe even brainliest answer. Thank you I really appreciate it. Have a nice day!
4 0
2 years ago
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valentinak56 [21]
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2 years ago
Which of the following functions is graphed below?
Butoxors [25]

Answer:

Option (B)

Step-by-step explanation:

Given question is not complete; find the complete question in the attachment.

In the graph attached,

Parent function is an absolute value function,

f(x) = |x|

When this graph is shifted 4 units left, rule for the translation will be,

f(x) → f(x + 4)

Therefore, the new function of above translation will be,

g(x) = f(x + 4) = |x + 4|

Now the graph is shifted 2 units down so the translated function will be,

h(x) = g(x) - 2

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If we rewrite the function in the form of an equation, graph will be represented by

⇒ y = |x + 4| - 2

Therefore, Option (B) will be the answer.

8 0
2 years ago
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