2 years ago

Whats is the slope. Help asp.

Mathematics

1 answer:

Deffense [45]2 years ago

7 0

The slope would be -1

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A simple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obta

Strike441 [17]

Answer: 18

Step-by-step explanation:

The sample mean is the best point estimate of the population mean .

Given : A simple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obtained (12 18 19 20 21).

Then , the sample mean = $\dfrac{\text{Sum of observations}}{\text{Number of observations}}$

sample mean $=\dfrac{12 +18 +19+ 20+ 21}{5}=18$

Hence, A point estimate of the mean is 18.

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3 years ago

abcd is an isosceles trapezoid with legs ab and cd and base bc if the length of ab =-3y+54 the leingth of bc =5y+2 and the leing

Vilka [71]

ANSWER

$y = 5$

EXPLANATION

The given isosceles tra-pezoid has legs

$ab = - 3y + 54$

and

$cd = 6y + 9$

The base is bc=5y+2.

The length of the legs of the isosceles tra-pezoid are equal.

This implies that,

$ab = cd$

Thus,

$- 3y + 54 = 6y + 9$

Group similar terms,

$54 - 9 = 6y + 3y$

$45 = 9y$

Divide both sides by 9.

$y = \frac{45}{9}$

$y = 5$

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3 years ago

Choose the best decimal to represent 5 3/7 2.3 5.428571 2.3 5.428571

NemiM [27]

Answer:

5.428571

Step-by-step explanation:

$5\frac{3}{7}$

take the fraction and divide that:

$\frac{3}{7} =0.428571$

then just add 5:

5 + 0.428571 = 5.428571

or...

convert the mixed fraction to improper fraction:

$5\frac{3}{7} = \frac{38}{7}$

divide like normal:

$\frac{38}{7} = 5.428571$

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Natasha2012 [34]

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add the numbers together

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bija089 [108]

The answer is C, let me know if i am correct!!

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