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Leni [432]
3 years ago
15

What is the value of the expression below when z=3 6z^2 +2z+10

Mathematics
2 answers:
Marat540 [252]3 years ago
5 0
54+6+10
60+10
70 is the answer
likoan [24]3 years ago
4 0

Answer:

6z^2 + 2z + 10

6 (3^2) + 2(3) + 10

6(9) + 6 + 10

54 + 16= 70

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4 0
3 years ago
Write an equation of the line that is perpendicular to 3x - 4y equals 9 + contains (-4, -5)
Inga [223]
  • Slope-Intercept Form: y = mx+b, with m = slope and b = y-intercept

So perpendicular lines have <u>slopes that are negative reciprocals</u> to each other, but firstly we need to find the slope of the original equation. The easiest method to find it is to convert this standard form into slope-intercept.

Firstly, subtract 3x on both sides of the equation: -4y=-3x+9

Next, divide both sides by -4 and your slope-intercept form of the original equation is y=\frac{3}{4}x-\frac{9}{4}

Now looking at this equation, we see that the slope is 3/4. Now since our new line is perpendicular, this means that <em>its slope is -4/3.</em>

Now that we have the slope, plug that into the m variable and plug in (-4,-5) into the x and y coordinates to solve for the b variable as such:

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<u>In short, your new equation is y = -4/3x - 10 1/3.</u>

3 0
3 years ago
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