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prisoha [69]
3 years ago
14

PLEASE HELP ME WITH THIS MATHS QUESTIONS!!! WILL GIVE BRAINLIEST!!!

Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:

a) y = (x+2)/3

b) 5

Step-by-step explanation:

f^-1(x) means "f inverse of x". To find the inverse, we simply:

a ) f(x) = 3x -2

    y = 3x - 2 --> because f(x) is the same thing as y

    x = 3y - 2 --> to find the inverse, we simply just switch x and y

    x + 2 = 3y

    y = (x+2)/3

b) f^-1(13)

   f^-1(13) = [((13) + 2)/3]

   f^-1(13) = (15)/3

   f^-1(13) = 5

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Will mark you as brainliest. If your good with polynomials.
kobusy [5.1K]
To solve/simplify this all you have to do is group like terms (the x^2's with each other, the x's with each other, and the normal numbers, -8)

14x^2-8+5x-6x^2+2x

group the x^2 (add 14x^2 to -6x^2)

8x^2-8+5x+2x

group the x's together (add 5x and 2x together)

8x^2+7x-8

Your answer will be d) 8x^2+7x-8



4 0
3 years ago
Which expression has a value of 8?<br> 8x (5-4)<br> (8 x 5) – 4<br> (8 x 5-4)<br> 8 x 5 - 4
fomenos
8x5-4 is equal to 8 if that means 8 times 5 minus 4
4 0
3 years ago
Find the factor of each ff. <br>6z²+12z+18​
frosja888 [35]

Answer:

Step-by-step explanation:

6z² + 12z +1 8​

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That's it.

8 0
2 years ago
If A and B are independent events with P( A) = 0.60 and P( A| B) = 0.60, then P( B) is: a. 0.60 b. cannot be determined with the
Simora [160]

Answer:

<h2>B. cannot be determined</h2>

Step-by-step explanation:

For two events A and B to be independent, it means they can occur at the same time i.e the occurrence of one does not affect the other occurring. It is represented as P(A∩B) = P(A)P(B)

Given P( A) = 0.60 and P( A| B) = 0.60, to find P(B), we will use the formula for the conditional probability P( A| B) = P(A∩B) /P(B)

P( A| B) = P(A)P(B) /P(B)

P( A| B) = P(A)

Since  P( A| B) = 0.60, therefore P(A) is also equal to 0.60 and P(B) cannot be determined since they cancelled out already

7 0
3 years ago
What is the value of the digit 1 in the number 13?
MissTica

Answer:

Wouldn't it be the 10's place? I hope it's right.

Step-by-step explanation:

Ex. 136

1 = hundredths place

3 = tenths place

6 = ones place

8 0
3 years ago
Read 2 more answers
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