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Kamila [148]
3 years ago
6

The probability for event A is 0.3, the probability for event B is 0.6, and the probability of events A or B is 0.8. Why are the

events not mutually exclusive? The sum of P(A) and P(B) is less than P(A or B). The product of P(A) and P(B) is less than P(A or B). The product of P(A) and P(B) is not equal to P(A or B). The sum of P(A) and P(B) is not equal to P(A or B).
Mathematics
1 answer:
Sedaia [141]3 years ago
6 0

Answer:

A.

Step-by-step explanation:

I think it makes the most sense sorry if i got it wrong

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levacccp [35]

Answer:

e equels MC squared

Step-by-step explanation:

7 0
3 years ago
If 10 pencils and 7 erasers cost $4.23 and 3 pencils and 1 eraser cost $0.95, what is the cost of 2 erasers?
QveST [7]

Answer: $0.58

<u>Step-by-step explanation:</u>

Let x represent pencil and y represent eraser

10x + 7y = 4.23   →   1(10x + 7y = 4.23)   →   10x + 7y =  4.23

3x  + y  = 0.95   →  -3(3x  + y  = 0.95)   →   <u>-21x - 7y</u> =<u> -6.65 </u>

                                                                    -11x         = -2.42

                                                                  <u>÷-11          </u>   <u>÷-11       </u>

                                                                         x        = 0.22  

      3x + y = 0.95

3(0.22) + y = 0.95

   0.66 + y = 0.95

               y = 0.29

2y = 2(0.29)  = 0.58


8 0
3 years ago
The width of a rectangle measures (2.5u+9.8)(2.5u+9.8) centimeters, and its length measures (1.5u+3.9)(1.5u+3.9) centimeters. Wh
icang [17]

Solution,

We have,

Width of rectangle, b = (2.5u+9.8) cm

Length of rectangle, l = (1.5u+3.9) cm

We need to find the expression for the perimeter of the rectangle. The formula for the perimeter of a rectangle is given by:

Perimeter = 2(l+b)

P = 2[(2.5u+9.8)+(1.5u+3.9)]

Collecting like terms

P = 2[(2.5u+1.5u)+(9.8+3.9)]

P=2(4u+13.7)

⇒ P = 8u+27.4

So, the expression for the perimeter of the rectangle is (8u+27.4) cm.

3 0
3 years ago
4+(-2) please help me I could use it
ehidna [41]
2 is the right answer
i hope this helps
5 0
3 years ago
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Is 37 and 91 made up of prime numbers?
Anon25 [30]

no they are not hope i was helpful xD

7 0
3 years ago
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