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Alisiya [41]
3 years ago
9

A=4 B=5 C=10 what is 4a-7

Mathematics
1 answer:
Digiron [165]3 years ago
3 0
What you need to do is plug in the values of the variables, 4(4)-7, because a=4.
 Next, you solve; 4(4)-7= 16-7 = 9.
In conclusion, the expression equals 9.
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3 years ago
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Step-by-step explanation:

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Answer: Slope is m = 2/3

Step-by-step explanation:

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8 0
3 years ago
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2 years ago
Consider the line 5x-8y=8 what is the slope of a line perpendicular to this line what is the slope of a line parallel to this li
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\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2,\ \text{then}\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{Convert the equation to the slope-intercept form}\ y=mx+b.\\\\5x-8y=8\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\-8y=-5x+8\qquad\text{divide both sides by (-8)}\\\\y=\dfrac{5}{8}x-1\to m_1=\dfrac{5}{8}\\\\perpendicular:\ m_2=-\dfrac{1}{\frac{5}{8}}=-\dfrac{8}{5}\\\\parallel:\ m_2=\dfrac{5}{8}

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3 years ago
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