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3 years ago

15

Please help me a. Find the amplitude. b. Find the period. c. Find the vertical shift. d. Find the horizontal shift. e. Find the

number of cycles between 0 and 2π. f. Find the equation of the graph

1 answer:

sashaice [31]3 years ago

7 0

Answer:

ERHRTGJTYKYTYRTHTJH RTHJYJRYJTHT J YTJTYJTRRRYJEHRGHRJ6UHHTHRYJG

Step-by-step explanationHRTJH YJTHJTYJTYJGJHTM:

TYJTYHJGYKYUKRTRU TJTKUKKTKYKKKTHJG TYHJT

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An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

Advocard [28]

Answer:

Value of the test statistic, $z_{test} = - 1.17$

Step-by-step explanation:

Null hypothesis, $H_{0}: \mu = 53.9$

Alternative hypothesis, $H_{a} : \mu \neq 53.9$

Sample mean, $\bar{X} = 53.7$

Sample size, n = 110

Standard deviation, $\sigma = 1.8$

Significance level, $\alpha = 0.02$

The value of the test statistics is given by the formula:

$z_{test} = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test} = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test} = - 1.17$

7 0

3 years ago

In a certain city of several million people, 7.7% of the adults are unemployed. If a random sample of 300 adults in this city is

Lilit [14]

Answer: 0.2643

Step-by-step explanation:

Given : The proportion of adults are unemployed : p=0.077

The sample size = 300

By suing normal approximation to the binomial , we have

$\mu=np=300\times0.077=23.1$

$\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62$

Now, using formula $z=\dfrac{x-\mu}{\sigma}$ , the z-value corresponding to 26 will be :-

$z=\dfrac{26-23.1}{4.62}\approx0.63$

Using standard distribution table for z , we have

P-value= $P(z\geq0.63)=1-P(z$

$=1-0.7356527=0.2643473\approx0.2643$

Hence, the probability that at least 26 in the sample are unemployed =0.2643

6 0

3 years ago

If a human face only have 2 eye balls how many eye balls can rap there whole head? 1-10 in why?

IceJOKER [234]

22 I hope this helps

7 0

3 years ago

Tell whether the sequence is arithmetic. If it is, identify the common difference.

kiruha [24]

Answer:

Option A is correct not arithmetic

Explanation:

We have given terms $\frac{1}{2},{1}{3},{1}{4}$ these terms are not an arithmetic progression because

Arithmetic progression is the sequence of terms in which difference between successive and proceeding terms is same.

$d=a_2-a_1$

we can see the difference between $\frac{1}{3}$ and $\frac{1}{2}$ is $\frac{-1}{6}$

Whereas, the difference between $\frac{1}{4}$ and $\frac{1}{3}$ is $\frac{-1}{12}$ .

5 0

3 years ago

Read 2 more answers

A researcher decides to split scores on an exam into quartiles. She determines that a score of 64 is at the 25th percentile, a s

allochka39001 [22]

Answer:

Answer : A

Step-by-step explanation:

The given data is 25 th percentile is 64, 50th percentile is 74 and 75 th percentile is 80.

percentage : 25 50 75

score : 64 74 80

Median:- The median is obtained by first arranging the data in ascending or descending order and applying the following rule.

If the number of observations is odd, then the median is observation

$(\frac{n+1}{2}) ^{th}$ term

If the number of observations is even, then the median is observation and observations.

$(\frac{n}{2}+1) ^{th}$

given n=3, middle term is '74'

In this given data the median is (M) = 74

Interquartile range IQR = median of upper half-median of lower half

= 80-64

= 16

IQR = 16

8 0

3 years ago