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V125BC [204]
3 years ago
8

Please help me with number 7.

Mathematics
1 answer:
Neko [114]3 years ago
6 0
7a expression: 12 + (- 1) + (- 1) + 3
7b evaluate: 13                    Solving:((12 + -1 = 11) + (-1 + 3 = 2) (11 + 2 = 13)) 
7c: At the end of the three days, the value of the stock was $13.
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A circular cake is cut into 8 equal pieces. What is the angle measure of each piece?
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Answer:

45

Step-by-step explanation:

A whole circle is 360 so if you divided that by 8 you get 45

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3 years ago
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HELP PLEASEEE. I DONT UNDERSTAND
Shtirlitz [24]

Answer:

D

Step-by-step explanation:

So we have the equation:

x^2-6x+58=0

And we want to solve for x.

We can solve it by completing the square.

First, subtract 58 from both sides:

x^2-6x=-58

Divide the b term by 2 and square it:

(-6)/2=-3\\(-3)^2=9

So, add 9 to both sides:

(x^2-6x+9)=-58+9

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(x-3)^2=-49

Take the square root of both sides:

x-3=\pm \sqrt{-49}

The square root of -49 is 7i:

x-3=\pm 7i

Add 3 to both sides:

x=3\pm 7i

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And we're done!

4 0
3 years ago
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lisov135 [29]
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You are a male who has a high school diploma. You plan to attend college and earn a bachelor's degree. When you graduate from co
galben [10]

<span>In a survey in 2016, it was found that for 10 broad degree categories ranging from engineering to communications, projected average salary of a bachelor’s degree is  </span><span>$50,556 in 2016. </span> In 2017, actual was $50,000 ($49,785, to be exact). If t$50,000 will be the basis, and the male who gets a job paying $ 40,760/yr, the difference in his yearly median income from obtaining a bachelor's degree is $9,240.

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8 0
3 years ago
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Gemiola [76]

Answer:

  B. Add 115+500 then subtract 3

  C. Add 112+500

Step-by-step explanation:

Any strategy that gives a sum of 612 will work. Strategy A gives a sum of 602, so is not useful.

The appropriate choices are B and C.

  B: 115 +497 = 115 +(500 -3) = (115 +500) -3

  C: 115 +497 = 115 +497 -3 +3 = (115 -3) +(497 +3) = 112 +500

6 0
3 years ago
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