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FromTheMoon [43]
3 years ago
15

Geometry math question no Guessing and Please show work

Mathematics
2 answers:
nignag [31]3 years ago
3 0

2x - y = 7

y = 2x - 7 this line has slope = 2

Perpendicular lines, slope is opposite and reciprocal so slope = -1/2

Answer

A . -1/2

Y_Kistochka [10]3 years ago
3 0

2x - y = 7

Put this equation in slope intercept form, y = mx + b.

Solve for y by subtracting 2x from both sides.

- y = 7 - 2x

Divide both sides by -1.

y = -7 + 2x

---

Perpendicular lines have opposite reciprocal slopes, so flip the slope of the line and change the sign.

The slope of this line: y = -7 + 2x is 2, so find the reciprocal and add a negative sign.

2 becomes -1/2, so your answer is:

A) -1/2

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<u>0.765 meters</u> long were the sticks when laid end to end.

Step-by-step explanation:

Given:

Rob laid three sticks end to end. The lengths of the sticks were 45 millimeters, 32 centimeters, and 4 decimeters.

Now, to find the length in meters of the sticks when laid end to end.

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4 years ago
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