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sweet [91]
3 years ago
5

Discuss the conditions under which P(A or B)= P(A) + P(B) is true

Mathematics
1 answer:
Andrews [41]3 years ago
4 0
That condition is true if P(A) and P(B) are independent of one another. For example, if I was pulling marbles out of a bag, if I am replacing the marbles back after I pull one out, then P(A or B) = P(a)+P(B).
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one estimate for the rate at which natural process can replace topsoil that has been eroded is about 2 millimeters per year at t
bulgar [2K]

Answer:

50 years

Step-by-step explanation:

First convert millimeters to centimeters. 2 millimeters is equivalent to 0.2 centimeters. Then divide 10 by 0.2. Answer should be 50

7 0
3 years ago
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RideAnS [48]

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Zach is having a birthday party at an amusement park. Tickets cost $28 each, but Zach's mom has a coupon for half-off. Both of Z
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Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Point R is located on segment QS. If QR = 10 and RS = 7, what is the measure of QS?
Vadim26 [7]

Answer:

QS = 17 units

Step-by-step explanation:

Given:

R located at QS

QR = 10

RS = 7

Find:

Measure of QS

Computation:

QS = QR + RS

QS = 10 + 7

QS = 17 units

6 0
3 years ago
One zero of the polynomial function f(x) = x3 + x2 + 20x is x = 0. What are the zeros of the polynomial function?
daser333 [38]

Answer:

The correct option is C

Step-by-step explanation:

if f(x)= x3 + x2 - 20x

Replace f(x) by y

y = x3 + x2 - 20x

0 =x3 + x2 - 20x

x3 + x2 - 20x = 0

Take out x as a common:

x(x2+x-20)=0

Find factors of x2+x+20.

x(x^2+4x-5x-20) = 0

x{x(x+4)-5(x+4)}=0

x(x+4)(x-5)=0

Set x= 0

x=0 , x+4=0 , x-5 =0

x=0, x=0-4 , x=0+5

x=0, x= -4, x=5

x=(0,5,-4)

The correct option is C....

6 0
4 years ago
Read 2 more answers
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