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Burka [1]
2 years ago
6

The graph of which function has an amplitude of 3 and a right phase shift of ?

Mathematics
2 answers:
cricket20 [7]2 years ago
8 0

Answer:

The first one

Step-by-step explanation:

The amplitude is usually the first number (for example, in this equation, the 3). Then you also know that the right or left shift depends on the addition or subtraction sign. Usually, the subtraction sign means to the right and the addition sign means to the left.

Kruka [31]2 years ago
7 0

Answer: it’s the first choice

Step-by-step explanation:

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Watching TV: In 2012, the General Social Survey asked a sample of 1326 people how much time they spent watching TV each day. The
Varvara68 [4.7K]

Answer:

We <em>fail to reject H₀ </em>as there is insufficient evidence at 0.5% level of significance to conclude  that the mean hours of TV watched per day differs from the claim.

Step-by-step explanation:

This is a two-tailed test.

We first need to calculate the test statistic. The test statistic is calculated as follows:

Z_calc = X - μ₀ / (s /√n)

where

  • X is the mean number of hours
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Therefore,

Z_calc = (3.02 - 3) / (2.64 /√(1326))

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Now we have to calculate the z-value. The z-value is calculated as follows:

z_α/2 = z_(0.05/2) = z_0.025

Using the p-value method:

P = 1 - α/2

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  = 0.975

Thus, using the positive z-table, you will find that the z-value is

1.96.

Therefore, we reject H₀ if | Z_calc | > z_(α/2)

Thus, since

| Z_calc | < 1.96, we <em>fail to reject H₀ </em>as there is insufficient evidence at 0.5% level of significance to conclude  that the mean hours of TV watched per day differs from the claim.

6 0
3 years ago
two lines, r and m, are represented by the following equations: line r: 2x 2y = 18 line m: x y = 9 which statement is true about
Masja [62]
Line r is twice line m. i.e. r = 2s which means that they are linearly dependent.

Therefore there are infinitely many solution to the given set of equations.
6 0
3 years ago
A spaceship traveled 1/2 of a light-year and stopped at a space station. Then it traveled 1/12 of a light-year further to a plan
liq [111]

Answer: 7/12 a light year I believe

Step-by-step explanation:

So what you do is you make the denominators of 1/2 and 1/12 the same which would be 6/12 and 1/12.

You then add them together and you get 7/12

I am sorry if this isn't right :< this is my 1st answer :>

7 0
2 years ago
If M/DFC= 40 and M CD= 55 the BG= <br> 25<br> 80<br> 135
Y_Kistochka [10]

Answer:

25

Step-by-step explanation:

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∠DFC = 0.5( m arc CD + m arc BG ), that is

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55 + BG = 80 ( subtract 55 from both sides )

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6 0
3 years ago
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