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3 years ago

14

What values complete each statement? Enter your answers in the blanks. (Enter your answer) (√5) 2 = _________ in simplest form.

By the Power of a Power rule, (5 1 2) 2 = 5 2 2 . Therefore, 5 1 2 must equal _______ in radical form. (Do not simplify the radical)

1 answer:

saul85 [17]3 years ago

6 0

Ftyuuiiuhhhhhhhhcccddwwqduuu

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How many palimdromic numbers is there between 300 and 400

blagie [28]

A palindrome is something that reads the same forwards and backwards.

If the number is a palindrome and it's between 300 and 400, then the
last digit must also be a ' 3 '.

So all we have left to fill in is the digit in the middle.

There are 10 possibilities for that one ... the digits ' 0 ' through ' 9 '.

So there are <em>10</em> palindromic numbers between 300 and 400.

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4 years ago

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Write as a decimal 0.068%

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$0.068\% =0.00068$

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3 years ago

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Determine the factors of the expression x^2 - 9

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

The answer is B.

Use the sum-product pattern

2+3−3−9

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Rewrite in factored form

(+3)−3(+3)

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2 years ago

Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

a

The 95% confidence interval is $1003 < \mu$

b

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

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3 years ago