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belka [17]
3 years ago
13

The probability that event M will not occur is 0.8 and the probability that event R will not occur is 0.6. If events M and R can

not both occur, which of the following is the probability that either event M or event Rwill occur?
a. 1/5
b. 2/5
c. 3/5
d. 4/5
e.12/25
Mathematics
1 answer:
morpeh [17]3 years ago
6 0

Answer:

C. 3/5

Step-by-step explanation:

Probability that M will occur =1-0.8=0.2=1/5

Probability that R will occur = 1-0.6=0.4=2/5

Probability that either of them will occur= 1/5 + 2/5= 3/5

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Answer:

3.625h,217.5min,13050sec

Step-by-step explanation:

S=vt

t=S/v

t=435/120 (km) /(km/h) =3.625h

t= 3.625*60 min = 217.5 min

t=217.5*60sec = 13050 sec

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sineoko [7]

Answer:

y = \frac{3}{2} x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

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Here m = \frac{3}{2} , then

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A hot air balloon is descending at a rate of 287 feet per minute.
faust18 [17]

Answer:

Please check the explanation.

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where

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A hot air balloon is descending at a rate of 287 feet per minute.

Thus, the rate of change m = -287

The negative sign indicates that a hot air balloon is descending.

Let y be elevation.

Let x be the time (in minutes)

As there is no mentioning of the initial height.

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now substituting m = -287 and b = 0

y = mx + b

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