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Tomtit [17]
2 years ago
13

I am very confused (I didn’t mean to press B)

Mathematics
1 answer:
Marta_Voda [28]2 years ago
5 0

Answer:

The anwer is A

Step-by-step explanation:

If it is a right angle triangle we use paythagoras theorem

a ×a + b× b= c × c

  • so we use the side which is straight to the 90° angle for the variable C. For variable A and B it doesn't matter we can use what we want.
  • so the side which is straight to the 90° angle is 17.
  • now let's substitute

1. 15× 15( square of 15) + b× b(square of b) = 17 ×17 (square of 17)

;2. 225 + b×b(square of b ) = 289

3. b×b(square of b) = 289-225

4. b × b( square of b )= 64

\sqrt{b \times b}  =  \sqrt{64}

b = 8

I hope it is helpful

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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.

5 0
3 years ago
Pleaseeee help I’ll mark you as Brainly if the answers correct with no link just tell me please
Ksenya-84 [330]

Answer:

Step-by-step explanation:

25-2t=0

2t=25

t=25/2=12.5 hrs.

6 0
2 years ago
Read 2 more answers
Determine the value c so that each of the following
Levart [38]
This can help you

a) since it is discrete we need to think about the sum thing it it was continuous we would look at an integral thing so I think if I remember correctly we need to find c such that <span><span>∑<span>i=0</span>3</span>c(<span>x2</span>+4)=1
b) </span> problem b is a similar setup


4 0
3 years ago
A bus company took a tour bus on a ferry. The ferry charges $130 for the bus plus an additional $2 per person on the bus. Write
pashok25 [27]
Answer: $2 variable per person, 120 base fee Step-by -step explanation : the delta are 20 persons and \$40 therefore variable cost are $2 per person base fee: 180-30*2=120

Hope this helps
7 0
2 years ago
Alejandra currently has a balance of $2,254 in her checking account. She deposits a $873.84 paycheck, a $25 rebate check, and a
zaharov [31]

Answer:

$3160.84

Step-by-step explanation:

2254 + 873.84 + 25 + 358 = 3510.84

3510.84 - 350 = 3160.84

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2 years ago
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