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Vesnalui [34]
3 years ago
7

Mariah makes bead necklaces. beads are packaged in bags of 50 and bags of 200. mariah bought 4 bags of 50 beads and 3 bags of 20

0 beads. how many heads did mariah buy?
Mathematics
1 answer:
ollegr [7]3 years ago
8 0
4*50 + 3*200 = 700
i hope this will help you
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The nth term is a sequence is 2n-1 the nth term in a different sequence is 3n+1
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6n² - n - 1

Step-by-step explanation:

2n x 3n +2n - 3n - 1

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You're standing 80 feet from the base of a building . You estimate that angle of elevation from your feet to the top is about 70
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3 years ago
3x^2 -5x -2=0
Kipish [7]

Answer:

Step-by-step explanation:

1. Find two numbers that add to make the coefficient of x (in this case, -5) and that multiply to make the constant term multiplied by the coefficient of x^2 (in this case, -2 x 3 = -6)

Two numbers that work are -6 and +1

-6 x +1 = -6

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2. Split the middle term into the two numbers that you found.

3x^2 -6x +x -2 = 0

I've put the -6 on the left side because in our next step, when we factorise, it will be easier than having the numbers the other way around.

3. Factorise the left side by taking out common factors from each pair. The pairs I'm talking about here are '3x^2 and -6x', and 'x and -2'

3x (x-2) +1 (x-2) = 0

4. You now have two numbers both being multiplied by the term x-2. We can rearrange this equation to give us two brackets being multiplied by each other.

(3x + 1) (x-2) = 0

5. According to the Null Factor Law, if two terms are multiplied together and the result is 0, then one of those terms must be 0. Make both terms equal to 0 and solve each for x.

3x + 1 = 0              x-2 = 0

3x = -1                   x = 2

x = -1/3

6. The solutions to this equation are x = 2 and x = -1/3

6 0
3 years ago
Read 2 more answers
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