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elixir [45]
3 years ago
13

Can somebody plz answer this question quick and correctly!

Mathematics
1 answer:
Kruka [31]3 years ago
3 0

Answer:

42%

Step-by-step explanation:

100% - 58% = 42%

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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
Evaluate f(-3) for f(x) = 2^x<br> a. 1/8<br> b. -8<br> c. 8<br> d. -6
pickupchik [31]

Answer:

A

Step-by-step explanation:

f(-3) = 2^-3

to get rid of a negative in an exponent, move the whole thing to the denominator.

1/(2^3)

2^3 = 2×2×2

1/(2×2×2)

1/8

6 0
2 years ago
What are the answer to these 5 questions this worth 20 points btw
Sunny_sXe [5.5K]
1. 900 gallons will be burned in 3 hours.

2. 50 gallons of gasoline weighs 300 pounds.

3. 2,124 = 59 yards

4. The person weighs 48 pounds

5. 12 people = 6 tablespoons
8 0
2 years ago
HELP IF U CAN! ASAP PLEASE!
lesya692 [45]

Answer:

Just do your best

Step-by-step explanation:

6 0
2 years ago
What is reflection of light?<br>wyatt answer in it ..!! ​
liubo4ka [24]

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that is afk arena

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2 years ago
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