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4 years ago

Please help me with thisexplainBRAINLIEST AVAILABLE!!

Mathematics

2 answers:

vfiekz [6]4 years ago

6 0

See the comment above.
Interchange the x and y in the original equation. call f(x) = y just for ease of understanding.
y = 3x + 5
Inverse
x = 3y + 5 Now solve for y.
(x - 5) = 3y Divide by 3
(x - 5)/3 = y

Remove the brackets.
x /3 - 5/3 = y

The answer is D <<<<< answer.

aliina [53]4 years ago

4 0

The closest to my explanation of this question i got was p(x)

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3 years ago

An isosceles trapezoid has a base of 8 meters, a height of 6 meters, and a top side length of 4 meters.

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3 years ago

Help i'll make you the brainliest

9966 [12]

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D) b = $\frac{S-2ac}{2a + 2c}$

Step-by-step explanation:

First, move all the terms that do not include b to the left side with S:

S = 2ab + 2bc + 2ac

S - 2ac = 2ab + 2bc

Now, factor out 2b from the right side:

S - 2ac = 2b(a + c)

Divide both sides by 2(a + c):

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Finally, multiply out the denominator:

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4 years ago

A group of pirates captures Kevin, Lisa, Matt and Neal, and forces them to play a game. They each roll a fair 6-sided-die once.

elena-s [515]

Answer: Option B, 16/81

Step-by-step explanation:

So we have 4 prisoners, they will roll a fair six side die and the product of the four rolls must NOT be a multiple of 3.

We know that every integer number can be "decomposed" into a product of prime numbers.

Then a number N, that is divisible by 3, can be written as:

N = 3*k

Where k is another integer.

Here we will have a product of 4 numbers, each of them are in between 1 and 6.

Now, if only one of the prisoners rolls a 3, then the product of the rolls will always be a multiple of 3. And if one of the rolls is 6 the same will happen, because 6 = 3.2

Then the probability of surviving is when in none of the four rolls we have a 3 or a 6.

Then we must have a 1, 2, 4 or 5.

The probability of 4 outcomes out of 6, is:

P = 4/6.

But we have 4 rolls, so we have that probability four times, and the joint probability will be equal to the product of the probabiliities for each roll, then the probability of surviving is:

P = (4/6)^4 = (2/3)^4 = 16/81

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3 years ago

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