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4 years ago

13

I need help for B,3,4

2 answers:

frosja888 [35]4 years ago

6 0

Idk b but 3 is because they are the same distance away from 0 and idk how to explain 4

Naddik [55]4 years ago

3 0

the number line shows that 0 is its own opposite because it is the only number that is the same distance from zero as zero. :)

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3 years ago

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4 years ago

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Kay [80]

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3 years ago

Read 2 more answers

Dave bowers collects u.s. gold coins. he has a collection of 44 coins. some are? $10 coins, and the rest are? $20 coins. if the

Nataliya [291]

Let x = number of $10 coins.
The total number of coins is 44, therefore there are (44-x) $20 coins.
Total value:
10x + 20(44-x) = 620
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x = 26 (number of $10 coins)
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Answer:
26 $10 coins
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8 0

3 years ago

4x2 + 3 = -7x <br>solve for x<br>x=_,_

Alenkinab [10]

$\displaystyle\bf 4x^2+3=-7x\\4x^2+7x+3=0 \\\\D=49-48=1 \\x_1=\frac{-7+1}{8} =-\frac{3}{4} \\x_2=\frac{-7-1}{8} =-1\\\\Answer: \boxed{ x_1=-\frac{3}{4} \quad ; \quad x_2=-1}$

3 0

3 years ago