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Paladinen [302]
3 years ago
6

What is the value of f(-2)? A. -2 B. -8 C. 8 D. 4

Mathematics
2 answers:
kotykmax [81]3 years ago
3 0
I think it is C
Thanks
mr Goodwill [35]3 years ago
3 0

Answer:

B. (-8)

Step-by-step explanation:

-2 falls in between the interval [-3,-1]

Therefore the equation would be f(x)=4x

.... f(-2)=4(-2)

4 x -2 = -8

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Real estate ads suggest that 56 % of homes for sale have​ garages, 27 % have swimming​ pools, and 16 % have both features. ​a) W
Marizza181 [45]

Answer:

a) 0.4

b) 0.28

c) The events are not independent

d) The events are not mutually exclusive

Step-by-step explanation:

Hi!

Lets call:

Gar = {homes with garage}

Pool = {homes with pool},  

A = {homes with pool and garage}  = Gar ∩ Pool

The data we are given is:

P(Gar) = 0.56

P(Pool) = 0.27

P(A) = 0.16

a) B = {homes with garage but not pool}. This set B is the set Gar without set A: B = Gar / A  

P(B) = P(Gar) - P(A) = 0.4

b) This is a conditional probability:

P(Pool | Gar) = P(Gar ∩ Pool) / P(Gar) = 0.16/0.56 = 0.28

c) To be independent events, it must be, by definition:

P(Gar ∩ Pool) = P(Gar) * P(Pool)

0.16 ≠ 0.56*0.27 = 0.15

Then, the events Gar and Pool are not independent

d) Gar and Pool are not mutually exclusive, because there are houses with both pool and garage. We know that because P(A) is not zero.

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3 years ago
The table above shows four numeric expressions. Which expression is an integer when it's evaluated?
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Answer: H

Step-by-step explanation:

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