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ch4aika [34]
3 years ago
12

Consider the equation below. (if an answer does not exist, enter dne.) f(x) = 5 cos2(x) − 10 sin(x), 0 ≤ x ≤ 2π

Mathematics
1 answer:
jolli1 [7]3 years ago
4 0
The given equation is a wave function. When plotted, the graph is shown in the attached picture. However, the unit is in degrees instead of radians. A unit of π  is equivalent to 180°. This plot could determine one variable if the other is given.

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Which expressions are correct for the situation?
Ludmilka [50]
One of the Answers is C.

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3 years ago
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A survey of 160 students is taken to determine whether they play sports and whether they have a job. Of the 71 students who play
Iteru [2.4K]

Answer:

The answer is 44- so B

Step-by-step explanation:

I did the quiz, and that was the correct answer.  ( Also I took this on goformative.)

3 0
3 years ago
An advertising agency notices that approximately 1 in 50 potential buyers of a product sees a given magazine ad, and 1 in 8 sees
zheka24 [161]

Answer:

Probability = 0.12025

Step-by-step explanation:

P (Am) = 1/50 = 0.02       {Magazine ad}

P (At) = 1/8 = 0.125         {Television ad}

P (Am ∩ At ) = 1/100 = 0.01      {Both ads}

P (Am U At) = P (Am) + P (At) - P (Am ∩ At )

= 0.02 + 0.125 - 0.01

P (Am U At)  = 0.135       {Person sees either ad}

P (Am' ∩ At') = 1 - P (Am U At)

P (Am' ∩ At')  = 1 - 0.135 = 0.865      {Person sees none ad}

Prob (Purchase) = Prob (Purchase with ad) + Prob (purchase without ad)

P (P/ A) = 1/4 = 0.25 , P (P / A') = 1/10 = 0.1

P (P) = (0.25) (0.135) + (0.1) (0.865)

= 0.03375 + 0.0865

0.12025

7 0
2 years ago
How much does Beatriz earn per hour?<br><br> How much would Beatriz earn if she worked 7 hours?
Alexxx [7]

Answer:

$52.50

Step-by-step explanation:

She makes $7.50 an hour multiple that by 7 hours and you get $52.50

4 0
3 years ago
What is the graph of the equation 9x^2 + 4y^2 - 18x + 8y - 23 = 0 ?<br> Also, how did you get that?
Dmitriy789 [7]
13xy^2-10xy-23=0

you first add the like terms and rewrite and thats how you get the answer
8 0
3 years ago
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