3 years ago

Enter the equation of the following using line in slope-intercept form.

Mathematics

1 answer:

pickupchik [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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The claim is that the white blood cell counts of adult females are normally? distributed, with a standard deviation equal to 1.6

antiseptic1488 [7]

From the question, we know the population standard deviation, σ = 1.63, the sample standard deviation, s = 3.07, the sample mean, $\bar{x}=7.43$ and the sample size, n = 38.

The question illustrates a hypothesis chi-square test of variance.

The test statistics for a Chi-squared test of variance is given by
$T=(n-1)\left( \frac{s}{\sigma} \right)^2 \\ \\ =(38-1)\left( \frac{3.07}{1.63} \right)^2 \\ \\ =37(1.883)^2=37(3.5473) \\ \\ =131.25$

7 0

3 years ago

67.52 = 21.60 + 2x what is the correct answer

Rom4ik [11]

Answer:

The answer is x=22.96

Step-by-step explanation:

hope that helps

67.52=21.6+2x

67.52=2x+21.6

2x+21.6=67.52

2x+21.6−21.6=67.52−21.6

2x=45.92

2x/2=45.92/2

x=22.96

6 0

3 years ago

Solve please thanks x+5= the square root of 7x+53

Marina86 [1]

$x+5= \sqrt{7x+53} \\ \\ (x+5)^2= (\sqrt{7x+53} )^2 \\ \\ x^2+10x+25=7x+53 \\ \\ x^2+3x-28=0 \\ \\ (x-4)(x+7)=0 \\ \\ x-4=0 \\ x=4 \\ \\ x+7=0 \\ x=-7 \\ \\ x=-7,4$