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2 years ago

Find the value of X if H is the midpoint of JG, GJ equals 4X -6 and GH equals 27.

Mathematics

1 answer:

kupik [55]2 years ago

7 0

Answer:

Step-by-step explanation:

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In which number is the digit 7 one-tenth as much than it is in the number 175,963? I need it quick

snow_lady [41]

The ten thousandth position.

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3 years ago

Ok guys i need some help

Strike441 [17]

Hello!

The surface area is the area of all of the shapes on the net added up. First we will find the area of the two triangles.

A=0.5bh
A=0.5(3·6)
A=0.5(18)
A=9

Since there are two triangles we double this area, giving us 18.

Now let's find the length of the two side rectangles.

7(4)=28
28+28=56

Now to find the middle rectangle.

6(7)=42

Now we add up all of the area to find the surface area.

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2 years ago

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2 years ago

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2 years ago

A data set includes 108 body temperatures of healthy adult humans having a mean of 98.3degrees°F and a standard deviation of 0.6

mylen [45]

<h2>Answer with explanation:</h2>

The confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

Given : Sample size : n=106

Sample mean : $\overline{x}=98.3^{\circ}\ F$

Standard deviation : $\sigma= 0.69^{\circ}F$

Significance level : $\alpha: 1-0.99=0.01$

Critical value : $z_{\alpha/2}=2.576$

Then , 99% confidence interval estimate of the mean body temperature of all healthy humans will be :-

$98.3\pm (2.576)\dfrac{0.69}{\sqrt{106}}\\\\\approx98.3\pm0.173=(98.3-0.173,\ 98.3+0.173)=(98.127,\ 98.473)$

Since 98.6 is higher than the upper limit of the confidence interval (98.473), then this suggest that the mean body temperature could be lower then 98.6 degrees.

The best estimate of population mean is always the sample mean. $\mu=\overline{x}=98.3^{\circ}\ F$

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2 years ago

Find the value of X if H is the midpoint of JG, GJ equals 4X -6 and GH equals 27￼.

Find the value of X if H is the midpoint of JG, GJ equals 4X -6 and GH equals 27.