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kirza4 [7]
3 years ago
10

4y + 6 - 2y =24 find y

Mathematics
1 answer:
Neporo4naja [7]3 years ago
7 0

Combine like terms

4y-2y=24-6

2y=18

y=9

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What kind of property is this problem 3x(k+4)=3xk+12
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If i'm not wrong its distributing property of addition. <span />
4 0
3 years ago
Suppose you choose a marble from a bag containing 3 red marbles, 5 white marbles, and 4 blue marbles. You return the first marbl
Veseljchak [2.6K]

Answer:

P(red and blue) = 0.1667

Step-by-step explanation:

Let A represent choosing a red marble, there are 3 red marbles

Let B represent choosing a blue marble, there are 4 blue marbles

There are 12 total marbles

Then...

P(A) = 3/12

P(B) = 4/12

choosing the first one, then replacing means the first choice has no effect on the probabilities of the second choice, so the situation is independent.  

When calculating the probability of independent events, you multiply the probabilities together.  There are 2 scenarios where we can get a red and blue marble..

Choosing a red, then a blue marble, the probability is

(3/12)( 4/12) = 12/144 = 1/12

Choosing a blue, then a red marble, the probability is

(4/12)(3/12) = 12/144 = 1/12

So we have a

(1/12) + (1/12) = 2/12 = 1/6 chance for that to happen, to

P(A and B) = 1/6 = 0.1667

6 0
2 years ago
What is the volume of a cylinder with a base of 24 meters and a height of 6 meters
serg [7]

Answer:

Volume = <u>2714.34</u>

Step-by-step explanation:

This is answer because the formula to finding cylinder volume is: \pir^{2}h

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Radius = 12

12 squared = 144

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1 year ago
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Sveta_85 [38]

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5 0
2 years ago
Question 1 of 10
Archy [21]

Answer:

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Step-by-step explanation:

Parabola:

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y = 7(x^{2} + 2x) + 4

Putting into vertex form, remember that:

(x + a)^{2} = x^{2} + 2ax + a^{2}

In this question:

x^{2} + 2x, to put into this format:

x^{2} + 2x + 1 = (x + 1)^{2}

We add one inside the parenthesis to do this. The parenthesis is multiplied by 7, so for the equivalent, we also have to subtract 7. Then

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So the correct answer is:

A. y = 7(x + 1)²-3

3 0
3 years ago
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