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matrenka [14]
2 years ago
12

Please answer 63 points for the answer

Mathematics
1 answer:
professor190 [17]2 years ago
7 0
For number 1 the like terms are 3a and 2a.
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There is a 30 percent chance that A can fix her busted computer. If A cannot, then there is a 40 percent chance that her friend
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Answer:

(a) 0.70

(b) 0.40

Step-by-step explanation:

Mutually-exclusive events are those events which cannot occur together.

Consider that events X and Y are mutually exclusive.

P (X and Y) = 0

Here the two events can be defined as follows:

A = A can fix the busted computer

B = B can fix the busted computer

The information provided are as follows:

P (A) = 0.30

P (B) = 0.40

If A cannot, then there is a chance that her friend B can fix it.

The above statement suggest that the events A and B are mutually exclusive, i.e. if A can fix the computer then B does not have to and if cannot then only B will fix it.

That is, P (A and B) = 0.

(a)

Compute the probability it will be fixed by either A or B as follows:

P (A or B) = P (A) + P (B) - P (A and B)

                = 0.30 + 0.40 - 0

                = 0.70

Thus, the probability it will be fixed by either A or B is 0.70.

(b)

Compute the probability that if it is fixed it will be fixed by B as follows:

P (not A and B) = P (B) - P (A and B)

                         = 0.40 - 0

                         = 0.40

Thus, the probability that if it is fixed it will be fixed by B is 0.40.

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Determine whether the statement (p∧(p⟶q))⟶q is a tautology one time by using truth table and the other time without using truth
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It is.........................................................

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Step-by-step explanation:

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The formula is y = mx+b where m is the slope and b is the y intercept.

y = 0x + b
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7 = 0 + b
b = 7
y = +7


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