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Marina86 [1]
3 years ago
8

1 more than the square of a number

Mathematics
2 answers:
Lostsunrise [7]3 years ago
7 0

Being a random number "x"

1 + x²

Makovka662 [10]3 years ago
6 0

Answer:

Step-by-step explanation:

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The number of electrical outages in a city varies from day to day. Assume that the number of electrical outages ( x ) in the cit
svlad2 [7]

Answer:

0.26 and 0.577

Step-by-step explanation:

Given :

x :___0 ___ 1 ____ 2 ____ 3

f(x):_0.80 _0.15__0.04 __0.01

The mean :

E(X) = Σ(x * p(x))

E(X) = (0*0.8) + (1*0.15) + (2*0.04) + (3*0.01)

E(X) = 0 + 0.15 + 0.08 + 0.03

E(X) = 0.26

Var(X) = Σx²*p(x)) - E(x)²

Σx²*p(x)) = (0^2*0.8) + (1^2*0.15) + (2^2*0.04) + (3^2*0.01) = 0.4

Σx²*p(x)) - E(x)² = 0.4 - 0.26² = 0.3324

Std(X) = √0.334 = 0.577

7 0
3 years ago
26.52 x 90.7 step by step
Shtirlitz [24]

Hiya!

Sokka is here to help!!

Here's a explanation!

26.52 × 90.7 = 2405.364

OR:

Here's a paper I wrote of your answer.

Sorry, if my picture is blurry.

Hopefully, this helps you!!

Sokka

4 0
2 years ago
Which of the following equations represents a proportional relationship?
IceJOKER [234]

Answer:

a

Step-by-step explanation:

y=3x

thus, a proportional relationship equation is y=kx .Where k is constant

8 0
3 years ago
Could someone please help me :) its easy I think - not to me though...
lara [203]
Lets find the unit rate of both of the shirts.

5 for 63 

4 for 54 

63/5 = 12.60

54/4 = 13.50

Now we have our unit rates!

Greg =   $12.60 per shirt
Zachary =  $13.50 per shirt

Greg's shirt were cheaper than his brothers, so it has a better cost. 
3 0
3 years ago
What is the principal square root of 64
Alexxx [7]

Answer:

8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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