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3 years ago

14

"when the population standard deviation is unknown, sample size is less than 30, and the population has a normal or near-normal

distribution"

1 answer:

dezoksy [38]3 years ago

5 0

<span>The population standard deviation is unknown, sample size is less than 30, and the population has a normal or near-normal distribution</span>.

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Pls can I have the workings too

KengaRu [80]

Answer:

$\frac{(3-2a)}{a^2}$

Step-by-step explanation:

Given expression is,

$\frac{3}{a^2}- \frac{2}{a}$

First equalize the denominators of the fractions,

$\frac{3}{a^2}-\frac{2a}{a^2}$

Now combine the fraction as a single fraction,

$\frac{(3-2a)}{a^2}$

Since, we can not solve this fraction further, this will be simplified form of the given expression.

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3 years ago

-8(6x +3) <br> pleasegghhjfhnmyufgbdz

crimeas [40]

Answer:

it would be -48x - 24

3 0

3 years ago

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Determine the equation of the circle graphed below

Irina-Kira [14]

Answer:

$(x-1)^2+(y-6)^2=16$

Step-by-step explanation:

The equation of a circle is given by $(x-h)^2+(y-k)^2=r^2$ , where $(h,k)$ is the center of the circle and $r$ is the radius of the circle.

From the diagram, we can find the following:

the radius of the circle is 4
the center of the circle is located at (1,6)

Thus, we have:

$(x-1)^2+(y-6)^2=4^2,\\\boxed{(x-1)^2+(y-6)^2=16}$

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3 years ago

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What is the value of the expression

Shalnov [3]

The correct answer is 19 :)

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3 years ago

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Can anyone provide me with an answer please.

Kitty [74]

I’m pretty sure it start at 1, multiple 1 each time. Because if it wants to see the pattern 1x1 will always be 1

3 0

4 years ago