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Arada [10]
3 years ago
6

Can u get the steps to solving -2(4)^2+4

Mathematics
1 answer:
svp [43]3 years ago
8 0
(4)^2 must be done first.

That’ll give you 16. (4x4)

16 x -2= -32

-32+4= -28
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Which of the following is not a proportional liner relationship?
DanielleElmas [232]
<h3>Answer: Choice A</h3>

=========================================================

Explanation:

A proportional linear relationship is of the form y = kx

We can solve for k to get k = y/x.

Based on that, we can prove a table is a proportional linear relationship if and only if each column of x,y values divide to the same number.

Choice A shows that y/x = 2/8 = 1/4 for the first column; however, y/x = 8/16 = 1/2 for the second column. The outputs 1/4 and 1/2 not being the same indicates we don't have a constant k value for all of the columns. This is sufficient to show that table A is not a proportional linear relationship.

-------------

In contrast, table B is a proportional linear relationship because we have these four divisions that lead to the same value (1/8)

  • Column One: y/x = 2/16 = 1/8
  • Column Two: y/x = 4/32 = 1/8
  • Column Three: y/x = 6/48 = 1/8
  • Column Four: y/x = 8/48 = 1/8

Showing that k = 1/8 for table B. The equation here is y = (1/8)x. We can rule out choice B.

I'll let you check out tables C and D on your own, but you should find that a similar situation shows up as did with table B. This indicates tables C and D are also proportional linear relationships. We can rule out choices C and D.

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Sunny_sXe [5.5K]
Let x be the number.

Then:
(x)+(x+1)+(x+2)>102
(x)+(x+1)+(x+2)<109

x+x+1+x+2
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3x+3<109
3x<109-3
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Therefore, the number can be bigger than 22 but less than 35.333 to meet the requirements.

Hope I helped :)
7 0
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kati45 [8]

Answer:

2.9

Step-by-step explanation:

29 is divided by 10 answer is 2.9

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A hiker walks at a speed of 3 2/5 kilometers per hour. How many kilometers will the hiker walk-in 3/4 hours?
kramer

Answer: 2.55 (or 51/20) kilometers

Step-by-step explanation: 17/5 km per one hour is 51/20 (2.55) km per 3/4 hours

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