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motikmotik
3 years ago
9

I really don't understand this

Mathematics
2 answers:
RoseWind [281]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

The mean is the sum of all values divided by the amount of values.

We take the sum of all the numbers:

-3 + -8 + 12 + -15 + 9

-11 + 12 + -15 + 9

1 + -15 + 9

10 + -15

-5

We then divide the sum by how many number we have (we are given 5 numbers):

-5/5 = -1

Therefore, our mean is equal to -1.

Archy [21]3 years ago
4 0

Answer:

-1

Step-by-step explanation:

-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1

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cestrela7 [59]

Answer:

( x - 7)^2=1

Step-by-step explanation:

4 0
2 years ago
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Consider the surface f(x,y) = 21 - 4x² - 16y² (a plane) and the point P(1,1,1) on the surface.
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Answer:

A) ( -8, -32 )

Step-by-step explanation:

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3 years ago
Karen's fish tank has 13 liters of water in it. She plans to add 4 liters per minute until the tank has at least 57 liters. What
guapka [62]

Answer:

Karen has to at least spend 11 minutes.

Step-by-step explanation:

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4 0
3 years ago
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Choose the point-slope form of the equation of this line.​
igor_vitrenko [27]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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Someone who can do this help me please.
lianna [129]

Answer:

x= 2

Step-by-step explanation:

the shapes are 6 in apart

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