3 years ago

The purpose of Radom sampling in a is to ensure what?

Mathematics

1 answer:

const2013 [10]3 years ago

5 0

It is to insure the experiment does not have bias.

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Name the sets of numbers to which each number belongs

IceJOKER [234]

I need the numbers or the picture of the question before i answer this please

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3 years ago

Which of the following is equivalent to the complex number -8(7i - 3i^2)

Leni [432]

Answer: B) -56i - 24

This is the same as -24 - 56i

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Explanation:

The 'i' refers to the imaginary number $\sqrt{-1}$

In other words, $i = \sqrt{-1}$

Squaring both sides gets us $i^2 = -1$

So,

$x = -8(7i - 3i^2)\\\\x = -8(7i - 3(-1))\\\\x = -8(7i + 3)\\\\x = -8(7i) -8(3)\\\\x = -56i -24 \ \ \text{ .... Answer: Choice B}\\\\x = -24 - 56i\\\\$

The result is in the form a+bi where a = -24 is the real part and b = -56 is the imaginary part.

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3 years ago

What is the domain and range of g(x)= -|x+2| -1

solmaris [256]

g(x)= -|x+2| -1

The domain is the input values, or x values

it is all real number

The range is the output values, or g(x)

the absolute value at is smallest is 0

0-1 is -1 this is the max since the absolute value is multiplied by -1

g(x) <=-1

the output is less than or equal to -1

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3 years ago

Dana is attaching a shelf to a wall and needs the shelf to be perpendicular to the wall. How many degrees should the shelf be re

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90° because perpendicular lines are never ending.

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4 years ago

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What is the perpendicular slope to the line y = 3/2+2?

Roman55 [17]

Answer:

slope is -2/3

Step-by-step explanation:

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