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3 years ago

How do i do disss pls help

Mathematics

1 answer:

masya89 [10]3 years ago

8 0

Number one would be x=4, I hope this helps

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Given f(x) = 4x + 2, find f-1(3).

Alexxandr [17]

Answer:

1/4

Step-by-step explanation:

The inverse function tells you the input value that corresponds to the given output value of the function.

<h3>Application</h3>

You want f^-1(3), which is the value of x such that f(x) = 3.

f(x) = 3 = 4x +2

1 = 4x . . . . . . subtract 2

1/4 = x . . . . . divide by 4

The inverse function of 3 is 1/4:

$\boxed{f^{-1}(3)=\dfrac{1}{4}}$

4 0

2 years ago

The answers are already there, I just need the work. I'm giving all of my points into this one :)

Radda [10]

I can’t see the image :(

5 0

3 years ago

What is 4×7 Please answer

stealth61 [152]

4 x 7= 28

BTW no calculator. Did it in my head. Hope this helps!

5 0

3 years ago

Read 2 more answers

If events A and B are independent, what must be true?A.) P(AB) = P(B)

anygoal [31]

Answer:

B.) P(A/B) = P(A)

Step-by-step explanation:

If two events, A and B are independent:

We have that:

$P(A \cap B) = P(A)P(B)$

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

Since they are independent:

$P(A \cap B) = P(A)P(B)$

Then

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{P(A)P(B)}{P(A)} = P(B)$

$P(B|A) = P(B)$ , or either:

$P(A|B) = P(A)$ , and thus, the correct answer is given by option B.

7 0

2 years ago

What is the volume of the cylinder below?

Rasek [7]

The answer is D. 36pi units^3

Hope this helps!

The formula for cylinder volume is: pi*r^2*h

6 0

3 years ago

Read 2 more answers

How do i do disss pls help​

How do i do disss pls help