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alexdok [17]
3 years ago
13

What is the Prime Factors of 10​

Mathematics
1 answer:
Drupady [299]3 years ago
7 0

Answer:

  2, 5

Step-by-step explanation:

10 = 2 × 5 . . . . . . both of these factors are prime

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What is the percent of increase from 50 to 90?
iogann1982 [59]
The answer would be A.40% because 90%-50% and 9-5=4 so your answer would be 40% because you would bring down your zero
5 0
3 years ago
Read 2 more answers
A. A researcher reads that in the population of US students, the average income of students is $1500. In a random sample of 300
MrRa [10]

Answer:

A. Value of t = -1.7974 .

B. If the t-score that was calculated was between 1.7 and 1.9, we will not be able to reject the null hypothesis.

C. No, we can't reject the null hypothesis with 99% confidence.

Step-by-step explanation:

We are given the population mean income of students, \mu = $1500.

Let,   Null Hypothesis, H_0 : \mu = $1500

Alternate Hypothesis, H_1 : \mu < $1500

A. The one-tailed t statistics used here is ;

               \frac{xbar - \mu}{\frac{s}{\sqrt{n} } } follows t_n_-_1     where, xbar = sample mean = $1445

                                                              s = sample standard deviation = $530

                                                              n = sample size = 300

Test Statistics  = \frac{1445 - 1500}{\frac{530}{\sqrt{300} } } follows t_2_9_9

         Value of t      = -1.7974

<em>Now, at 5% level of significance the t table will give a critical value of -1.9696. Since our test statistics is greater than critical value as -1.7974 > -1.9696 so we have insufficient evidence to reject null hypothesis and conclude that population mean is $1500 and sample mean is less than the population mean</em>.  

B. If the t-score that was calculated above was between 1.7 and 1.9 then also we haven't rejected the null hypothesis as then also our test statistics doesn't lie in the rejection region as 1.7 to 1.9 is greater than -1.9696. And we conclude that sample and the population mean are not same.

C. <em>99% Confidence Interval for </em>\mu = [xbar - 1.9696*\frac{s}{\sqrt{n} } , xbar + 1.9696*\frac{s}{\sqrt{n} }]

                                                     = [1445 - 1.9696*\frac{530}{\sqrt{300} } , 1445 + 1.9696*\frac{530}{\sqrt{300} }]

                                                     = [ 1384.731 , 1505.269 ]

Since, $1500 lies in this 99% confidence interval so still we can't reject null hypothesis.

         

7 0
3 years ago
Help me please, i am terrible at math
german

Answer:

the correct answer is option C

7 0
3 years ago
Read 2 more answers
115 = 20 + 2.5x<br> Answers <br> X= 38 <br> X= - 37/38
KIM [24]
The answer would be X=38
7 0
3 years ago
Write 375 as a product of it's Prime Factors
coldgirl [10]

Answer:

  • 375 = 3*5*5*5

Step-by-step explanation:

Given number 375

<u>Find prime factors:</u>

  • 375 = 3*125 = 3*5*25 = 3*5*5*5
7 0
3 years ago
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