Can someone please help me on this!!

Mathematics

1 answer:

pashok25 [27]3 years ago

5 0

Answer:

(Look at image)

Step-by-step explanation:

(Also look at image)

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Quantitative data

wariber [46]

The answer is A) measures things using quantities or numbers. Hope this helps!

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3 years ago

What is (2+y)³ written out?

Aleksandr-060686 [28]

${ \left( 2+y \right) }^{ 3 }\\ \\ =\left( 2+y \right) \left( 2+y \right) \left( 2+y \right) \\ \\ =\left( 2+y \right) \left( 4+4y+{ y }^{ 2 } \right)$

$\\ \\ =2\left( 4+4y+{ y }^{ 2 } \right) +y\left( 4+4y+{ y }^{ 2 } \right) \\ \\ =8+8y+2{ y }^{ 2 }+4y+4{ y }^{ 2 }+{ y }^{ 3 }\\ \\ ={ y }^{ 3 }+6{ y }^{ 2 }+12y+8$

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3 years ago

How many different ways are there to rearrange the letters of the word EXAM, if you don't care if the results is a recognizable

Vlada [557]

In this case, all letters are unique.

Start by holding the first letter:
E - XAM
E - XMA
E - MAX
E - MXA
E - AXM
E - AMX
So there are 6 combinations here.

Repeat for all 4 letters.

6 x 4 = 24

This is same as 4x3x2x1.

For 3 unique characters, it is 3x2x1.
For 5 unique characters, it is 5x4x3x2x1
And so on...

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3 years ago

A drug company is testing a new drag which is supported to reduce blood pressure. From the nine people who are used as subjects,

Pie

Answer:

The 95% confidence interval for the mean change in blood pressure, $\bar{x}$ , is 1.744 < $\bar{x}$ < 2.816