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oksian1 [2.3K]
3 years ago
13

What is the amplitude of y=1/2sin2x

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0
The multiplier of the sine function is its amplitude: 1/2.
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I don’t understand what to do
Natasha2012 [34]

Answer:  14cm

Step-by-step explanation:

The diameter of a circle is twice the radius.

Therefore, the diameter = 2*7 cm = 14cm

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2 years ago
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9x + 8y3 – 7 = 3y3 -3<br> 9x+ 5y = 0
Vikki [24]

Answer:

102 actually just add it up

Step-by-step explanation:

add it up

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Help me with question 15 plz?
yawa3891 [41]

Answer:

B

Step-by-step explanation:

well plug in x and y

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3 years ago
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An automobile manufacturer has given its car a 52.6 miles/gallon (MPG) rating. An independent testing firm has been contracted t
Arte-miy333 [17]

Answer:

Null hypothesis:\mu = 52.6  

Alternative hypothesis:\mu \neq 52.6  

z=\frac{52.8-52.6}{\frac{1.6}{\sqrt{250}}}=1.976    

p_v =2*P(z>1.976)=0.0482  

Since the p value is lower than the significance level wedon't have enough evidence to conclude that the true mean is significantly different from 52.6 MPG.

Step-by-step explanation:

Information provided

\bar X=52.8 represent the sample mean  for the MPG of the cars

\sigma=1.6 represent the population standard deviation

n=250 sample size  of cars

\mu_o =52.6 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic (variable of interest)  

p_v represent the p value for the test

Hypothesis

We need to conduct a hypothesis in order to check if the true mean of MPG is different from 52.6 MPG, the system of hypothesis would be:  

Null hypothesis:\mu = 52.6  

Alternative hypothesis:\mu \neq 52.6  

Since we know the population deviation the statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}  (1)  

Calculate the statistic

Replacing we have this:

z=\frac{52.8-52.6}{\frac{1.6}{\sqrt{250}}}=1.976    

Decision

Since is a two tailed test the p value would be:  

p_v =2*P(z>1.976)=0.0482  

Since the p value is lower than the significance level wedon't have enough evidence to conclude that the true mean is significantly different from 52.6 MPG.

3 0
2 years ago
The florida panther has an average height of 30 inches. It is 20 inches taller than the northern mockingbird. Write and solve an
sleet_krkn [62]
30-20=x 30 for the height of panther and 20in taller so u subtract 20 from 30
3 0
3 years ago
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