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xenn [34]
4 years ago
8

Please help!

Mathematics
1 answer:
Ede4ka [16]4 years ago
8 0
So, we have the points. Here are the graphs:

So, the answer is d

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For which value of θ is tan θ equal to sin θ?
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Answer:

Step-by-step explanation:

tan \theta=sin \theta\\tan~ \theta-sin~ \theta=0\\\frac{sin ~\theta}{cos~\theta} -sin\theta=0\\multiply ~by~cos~\theta\\sin ~\theta-sin~\theta~cos~\theta=0\\sin \theta(1-cos \theta)=0\\sin~\theta=0=sin k\pi \theta=k \pi ,where~k~is~an~integer.\\or cos\theta=1=cos 2k\pi \\\theta=2k\pi \\where~k~ is~an ~integer.\\combining\\\theta=k\pi \\where~k~is~an~integer.

4 0
3 years ago
Which product will be neither positive nor negative?
shusha [124]

Answer:

C. -13x0

Step-by-step explanation:

-13x0 will not give you a negative or positive number. This is because any number time 0 gives you 0, and zero is the only number that is neither positive nor negative. Every other expression will give you a nonzero number, which must be positive or negative.

8 0
3 years ago
Rewrite in scientific notation then in standard form
saul85 [17]

5) Scientific Notation: 12.4 x 10³ Standard Form: 12400

4 0
3 years ago
Consider the probability distribution shown below. x 0 1 2 P(x) 0.15 0.80 0.05 Compute the expected value of the distribution. (
larisa [96]

Answer:

Expected value =0.9

Standard deviation = 0.4359

Step-by-step explanation:

Let's use the formula to find expected value or mean.

Expected value =Σ x *P(x)

  x    0    1     2

P(x) ) .15  .8  .05

So, expected value = (0)(0.15) +1(0.8)+2(0.05)

                                = 0 +0.8 +0.1

                                =0.9

Expected value =0.9

Now, let's find standard deviation

x           (x- E(x))^{2}         (x-E(x))^{2} *p(x)

0           (0-0.9)^{2}            (0-0.9)^{2} *0.15  =0.1215

1            (1-0.9)^{2}            (1-0.9)^{2} *0.8    =0.008

2           (2-0.9)^{2}             (2-0.9)^{2} *0.05  =0.0605

Now, add the last column together and then take square root to find standard deviation.

Standard deviation of the distribution =\sqrt{0.1215+0.008+0.0605)}

Simplify it, so standard deviation =0.4358898...

Round the answer to nearest four decimal places

Standard deviation = 0.4359

7 0
3 years ago
Help me please I don’t get it
VMariaS [17]
Do you need help with all of them?
6 0
2 years ago
Read 2 more answers
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