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3 years ago

8

Nadia selects three marbles from the jar to the right without replacing them. What is the probability that all three marbles are

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1 answer:

Savatey [412]3 years ago

4 0

Not very likely. Does a picture come with this question.

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Find the first four terms of the sequence<br> An=2a n-1,where a1=3

yKpoI14uk [10]

The first four terms of the sequence are 3 , 6 , 12 , 24

Step-by-step explanation:

We need to find the first four terms of the sequence $a_{n}=2a_{n-1}$

where $a_{1}=3$ to find them do that

Substitute n by 2 in the rule to find $a_{2}$
Substitute n by 3 in the rule to find $a_{3}$
Substitute n by 4 in the rule to find $a_{4}$

∵ $a_{n}=2a_{n-1}$

- Substitute n by 2 to find the 2nd term

∴ $a_{2}=2a_{2-1}$

∴ $a_{2}=2a_{1}$

∵ $a_{1}=3$

∴ $a_{2}=2(3)$

∴ $a_{2}=6$

- Substitute n by 3 to find the 3rd term

∴ $a_{3}=2a_{3-1}$

∴ $a_{3}=2a_{2}$

∵ $a_{2}=6$

∴ $a_{3}=2(6)$

∴ $a_{3}=12$

- Substitute n by 4 to find the 4th term

∴ $a_{4}=2a_{4-1}$

∴ $a_{4}=2a_{3}$

∵ $a_{3}=12$

∴ $a_{4}=2(12)$

∴ $a_{4}=24$

The first four terms of the sequence are 3 , 6 , 12 , 24

Learn more:

You can learn more about the sequences in brainly.com/question/1522572

#LearnwithBrainly

3 0

3 years ago

(5x10^3)x(9x10^7) can someone please answer this for me.

Anna11 [10]

4.5 times 10^10

1. Multiply 5times ten to the third

2. Multiply 9 times ten raised to the seventh

Then multiply them together
5000 times 90000000

5 0

3 years ago

What is the equation of this graphed line?

Eva8 [605]

Answer:

y = -9/8x + 7

Step-by-step explanation:

<u>Slope-intercept form is:</u>

y = mx + b

<u>Points given:</u>

(0, 7) and (8, -2)

<u>y-intercept is </u>

b = 7 as per the first point

<u>And the slope is:</u>

m = (-2 - 7)/(8 - 0) = -9/8

<u>So the line is:</u>

y = -9/8x + 7

6 0

3 years ago

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3(5 - 2x) + 2(x-3) plz help me quick:(

trasher [3.6K]

Answer:

9-4x is simplified

Step-by-step explanation:

hope this helps

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3 years ago

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Dylan buys 3.2 pounds of grapes for $2.56. What is the price per pound of the grapes?

Alona [7]

Answer:

$0.64/lb

Step-by-step explanation:

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3 years ago

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