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pav-90 [236]
3 years ago
13

VVVVVVVVVVVVVVVVVVVVVVVVV

Mathematics
1 answer:
defon3 years ago
5 0

Answer:

well i divided the votes he got with the votes u where suppose to get an i got 0.56 i dont really know if its right so like ask someone smarter i tried my best but u can try




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The point P(x,y) lies on the terminal side of an angle θ = -60° in standard posistion. What are the signs of the values of x and
lyudmila [28]

Answer:

x positive, y negative

Step-by-step explanation:

-60 is the 4th quadrant of the unit circle ( negative angles go clockwise from 0), so  the x value is positive and the y value is negative.

3 0
3 years ago
If 8 chairs cost $1,064 what is the cost of 11 chairs​
evablogger [386]
1463 (1064 divided by 8= 133, 133x11)
6 0
3 years ago
While conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modem
Kitty [74]

Answer:

We conclude that this is an unusually high number of faulty modems.

Step-by-step explanation:

We are given that while conducting a test of modems being manufactured, it is found that 10 modems were faulty out of a random sample of 367 modems.

The probability of obtaining this many bad modems (or more), under the assumptions of typical manufacturing flaws would be 0.013.

Let p = <em><u>population proportion</u></em>.

So, Null Hypothesis, H_0 : p = 0.013      {means that this is an unusually 0.013 proportion of faulty modems}

Alternate Hypothesis, H_A : p > 0.013      {means that this is an unusually high number of faulty modems}

The test statistics that would be used here <u>One-sample z-test</u> for proportions;

                             T.S. =  \frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n} } }  ~  N(0,1)

where, \hat p = sample proportion faulty modems= \frac{10}{367} = 0.027

           n = sample of modems = 367

So, <u><em>the test statistics</em></u>  =  \frac{0.027-0.013}{\sqrt{\frac{0.013(1-0.013)}{367} } }

                                     =  2.367

The value of z-test statistics is 2.367.

Since, we are not given with the level of significance so we assume it to be 5%. <u>Now at 5% level of significance, the z table gives a critical value of 1.645 for the right-tailed test.</u>

Since our test statistics is more than the critical value of z as 2.367 > 1.645, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u><em>we reject our null hypothesis</em></u>.

Therefore, we conclude that this is an unusually high number of faulty modems.

6 0
3 years ago
A mechanic works on the overhaul of a transmission. He starts at 8:25 AM and finishes
Mama L [17]
$56.25

8:25 - 4:25 = 4 hours

4 hours - 1 hour for lunch = 3 hours

$18.75 x 3 = $56.25
3 0
2 years ago
Plss help :((((((((((((
ale4655 [162]

Answer:

The answer is c

i do believe but you never know

8 0
3 years ago
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