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Stella [2.4K]
3 years ago
5

The average January surface water temperatures (°C) of Lake Michigan from 2000 to 2009 were 5.07, 3.57, 5.32, 3.19, 3.49, 4.25,

4.76, 5.19, 3.94, and 4.34.
The mean value of these temperatures is 4.312.


What is the variance of this data set?
Will give Brainliest

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0

Answer:

UwU

Step-by-step explanation:

Mnenie [13.5K]3 years ago
6 0

Answer:

0.5192

Step-by-step explanation:

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Solve for x. -3(3x+3)= -2x+5
notsponge [240]

Answer:

x = -2

Step-by-step explanation:

So we are given the equation -3(3x + 3) = -2x + 5 and we are solving for x. We will have to try to get the equation into the form x = _. That would be our answer.

-3(3x + 3) = -2x + 5

Distribute the -3 on the left side.

-9x - 9 = -2x + 5

Add 2x to both sides to get rid of the -2x on the right side.

-9x - 9 + 2x = 5

Simplify.

-7x - 9 = 5

Add 9 to both sides to get rid of the - 9 on the left side.

-7x = 5 + 9

Simplify.

-7x = 14

Divide both sides by -7 to get rid of the coefficient of -7 on the left side.

x = 14 ÷ (-7)

Simplify.

x = -2

The answer is x = -2.

I hope you find my answer helpful. :)

4 0
3 years ago
Read 2 more answers
-144 is -1 x 2a x 3b what is the sum of a+b?
BigorU [14]
-144= -1×2a×3b
144=2a×3b
144= 6ab
24= ab

a,b could b any two factors that have a product of 24
For example a,b could = 6,4 or 8,3 or 24,1 

Answer:
This question is tricky because it could have multiple answers: for example is a,b= 6,4 then a+b= 10, but if a,b=24+1=25. So, the answer is that the sum of a+b varies depending on which 2 factors of 24 a and b are equal to. Does this make sense?
7 0
3 years ago
Help me please ASAP
Oliga [24]

Answer:

30

Step-by-step explanation:

if im reading the qestuion right

so she had 80 bucks she spend 20 on a ticked so she has 60 left so if im reading it right she spent all of her money so 60 divde by 2 is 30.  

hoped this helped!

3 0
3 years ago
A flying disc was originally marked at 5$ and has been sold at $3.50. What was the percent of discount?
Otrada [13]

Answer:

30%

Step-by-step explanation:

Percentage discount

=  \frac{discount}{original \: price}  \times 100\% \\  =  \frac{5 - 3.50}{5}  \times 100\% \\  = 30\%

☆ Discount= original price -selling price

7 0
3 years ago
Help me please!<br> If you get it right, I’ll will brainliest u!!
juin [17]

Answer:

c) if x=2, then 4x=8

Step-by-step explanation:

4 0
3 years ago
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