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3 years ago

Alegbra- How can I solve #5?

Mathematics

1 answer:

iren [92.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

For the first one use the law of total probability

B=A∩B+A'∩B

12=9+A∩B

A∩B= 3

For this one you should use demorgans law and the union formula

(A'∩B')=(AUB)'

AUB= A+B-A∩B

6+12-3=15

15'= 24-15 = 9

For this one use demorgans law again

(A'UB')=(A∩B)'

(A∩B)'= 24-A∩B= 24-3= 21

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Answer:

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Step-by-step explanation:

First, you have to substitute both functions into the equation to get:

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And finally, you add/subtract the x's that have the same power to get:

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3 years ago

Please help

Harman [31]

Answer:

we get $\mathbf{gf(2)=-\frac{1}{3}}$

Step-by-step explanation:

We are given:

$f(x)=1-2x\\g(x)= \frac{1}{x}\\h(x)=x^3+1$

We need to find value of $gf(2)$

$gf(2)=g(f(2))$

First putting f(x) inside of g(x) and then putting x=2

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Now putting x=2 to find $gf(2)$

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2 years ago