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3 years ago

13

How do you explain if something IS NOT a perfect square/ square number?

2 answers:

mariarad [96]3 years ago

6 0

Answer:

A square number cannot be a perfect number. 0, 1, 5, 14, 30, 55, 91, 140, 204, 285, 385, 506, 650, 819, 1015, 1240, 1496, 1785, 2109, 2470, 2870, 3311, 3795, 4324, 4900, 5525, 6201... The sum of the first odd integers, beginning with one, is a perfect square: 1, 1 + 3, 1 + 3 + 5, 1 + 3 + 5 + 7, etc.

Step-by-step explanation:

Tom [10]3 years ago

6 0

Answer: Suppose √64 = 8, Here 64 is the perfect square number. It gives 8 as the answer which is a natural number. So we call 64 as a perfect square number. Based on this I conclude the numbers which give decimal form an answer when they are under root those are considered to be not a perfect square number.

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Suppose we are testing the null hypothesis H 0 mu=20 and the alternative H iu =20 , normal population with sigma=6 A random samp

cupoosta [38]

Answer:

The value of the test statistic is $z = -1.5$

Step-by-step explanation:

The formula for the test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the statistic, $\mu$ is the mean, $\sigma$ is the standard deviation and n is the number of observations.

In this problem, we have that:

$\mu = 20, X = 17, \sigma = 6, n = 9$

So

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{17 - 20}{\frac{6}{\sqrt{3}}}$

$z = -1.5$

The value of the test statistic is $z = -1.5$

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3 years ago

PLZ HELP 20 POINTS

katrin2010 [14]

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7 0

3 years ago

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Is 16x2 + 24x + 9 a perfect square trinomial

fredd [130]

16x²=(4x)², 9=3², 24x=2*4x*3
so this is a perfect square: (4x+3)²

5 0

3 years ago

A new restaurant with 134 seats is being planned. Studies show that 62% of the customers demand a smoke-free area. How many se

zzz [600]

Answer: 100

Step-by-step explanation:

Given : The total number of seats planned in new restaurant =134

The percentage of customers demand a smoke-free area = 62%

It can also be written as $62\%=\dfrac{62}{100}=0.62$

The mean of this binomial distribution will be :-

$\mu=np\\\\\mu=(134)(0.62)=83.08$

Standard deviation:-

$\sigma=\sqrt{np(1-p)}\\\\\Rightarrow\sigma=\sqrt{134(0.62)(0.38)}\approx5.6$

Now, the number of seats should be in the non-smoking area in order to be very sure of having enough seating there :-

$\mu+3\sigma=83.08+3(5.6)=99.88\approx100$

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3 years ago

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GalinKa [24]

Answer:

when x = 0, the answer is 0

when x = 3, the answer is 24

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7 0

2 years ago

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