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defon
3 years ago
13

Geometry math question no Guessing and Please show work

Mathematics
1 answer:
JulijaS [17]3 years ago
8 0

If we see the protractor, we ill see that there is a horizontal line and a slant line. We have to see where the slant line touches the protractor. And as we see that the slant line touches the protractor at two angles which are 150 degree and 30 degree. But since the angle is acute , so 150 degree is not possible . So the correct option is 30 degree.

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Number 8 please help look at the picture
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20.3 is 4 times as large as some number. What is the number?
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7 0
3 years ago
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If you can answer these two questions you can get 15 points
irina1246 [14]

Answer:

formula is y= mx + c  (c=y intercept)

1) slope= m= -0.75, y intercept = -2

y= -0.75x - 2

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

2)slope=m=0.5, y intercept = 8

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3 years ago
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14 over 70 in simplest form
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3 years ago
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Solve 9x^2- 17x- 85 = 0 Give your solutions correct to 3 significant figures.​
dybincka [34]

Answer:

x =\frac{17}{18} +\frac{1}{18} \sqrt{3349} OR x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}

Step-by-step explanation:

9x2−17x−85=0

For this equation: a=9, b=-17, c=-85

9x2+−17x+−85=0

Step 1: Use quadratic formula with a=9, b=-17, c=-85.

x =\frac{-b + \sqrt{b^{2}-4ac } }{2a}

x  =\frac{-(-17)+\sqrt{(-17)^{2} -4(9)(-85)} }{2(9)}

x =\frac{17}{18} +\frac{-1}{18} \sqrt{3349}

4 0
2 years ago
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