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Reika [66]
3 years ago
11

A particular sound wave can be graphed using the function

Mathematics
1 answer:
balandron [24]3 years ago
3 0

Answer:

Amplitude =1

Step-by-step explanation:

Given function is y=1\cdot\sin\left(2x\right).

Now we need to find about what is the amplitude of the given function y=1\cdot\sin\left(2x\right).

To find that let's compare given equation y=1\cdot\sin\left(2x\right) with standard equation y=a\cdot\sin\left(bx-c\right)+d. We get:

a=1

We know that amplitude of the function y=a\cdot\sin\left(bx-c\right)+d is given by the value of |a|.

Hence amplitude of the given function = |a|= |1|=1

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A hotel wants to know if there's a relationship between gender and the way customers make room reservations. A manager takes a r
padilas [110]

Answer:

Step-by-step explanation:

Here,

H_o: The way of reservation is independent of gender.

H_a: The way of reservation is not independent of gender.

We use a chi square test because we can calculate the expected frequencies for this chart.

Doing an Expected Value Chart,          

         

33.7625   9.7125   30.525  

39.2375   11.2875   35.475

Using chi^2 = Sum[(O - E)^2/E],          

chi^2 =    4.482385929

With df = (a - 1)(b - 1), where a and b are the number of categories of each variable,

a =    3      

b =    2

df =    2

Thus, the critical value is

significance level =    0.05

chi^2(critical) =    5.991464547

Also, the p value is

P =    0.106331579

Thus, comparing chi^2 and chi^2(critical) [or, p and significance level], we   FAIL TO REJECT THE NULL HYPOTHESIS.

Thus, there is no significant evidence that the way of reservation is dependent of gender. [CONCLUSION]

6 0
3 years ago
I really need help if you explain I will give brainliest
Troyanec [42]
Since the ratio of sides is 4 to 3, the proportion is:

\frac{4}{3} = \frac{12}{x}

x = 9
6 0
3 years ago
1)
Tcecarenko [31]
So the x intercepts are going to be at the places where y = 0 so you can just read that off and get (-2,0) and (3,0). Hope this helps :)
5 0
3 years ago
I will give you the brainliest if you answer asap please
IRINA_888 [86]

Answer:

168

Step-by-step explanation:

You just need to triple the answer to get 168.

8 0
3 years ago
mandy drew a scale drawing of a hotel the scale of the drawing was 9 inches : 4 feet a room in the hotel is 36 inches long in th
Karo-lina-s [1.5K]

Answer:

SUBTRACT DUH EASY

Step-by-step explanation:

8 0
3 years ago
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