What percent of 84 is 12?

2 answers:

6 0

So here is what we have

12 is what we need

out of the 84 we have

so...

12/84= .1428571429

and lets check our work

.1428571429 X 84 = 12

now lets convert it to a percent

.1428571429 X 100 = 14.28571429%

so the answer is

14.28571429%

Doss [256]2 years ago

4 0

12 divided by 84=0.1428. Now 0.1428 times 100% 0.1428X100= 14.28 round up so answer is 14.3%

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How is (s-t)(s/t) equivalent to (s^2/t) -s

tigry1 [53]

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4 0

2 years ago

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Write a linear equation that intersects y = x2 at two points. Then write a second linear equation that intersects y = x2 at just

yarga [219]

Answer:

y = x
y = x - 1/4
y = x - 1/2

Step-by-step explanation:

1. Any linear equation that describes a line with non-zero slope through the vertex of the parabola will intersect the parabola at two points (the vertex being one of them). A simple equation for such a line is y=x.

2. Differentiating the equation, you find that the slope of the curve y = x^2 is 2x, so if we choose a line with a slope of 1, it will go through the point on the curve with x-value equal to 1/2. The y-value at that point is y = (1/2)^2 = 1/4, so the y-intercept of the line must be -1/4.

The line that intersects the curve at one point (1/2, 1/4) is tangent at that point. It has equation y = x -1/4.

3. Any line with the same slope as the tangent line, but a more negative y-intercept, will not intersect the parabola at all. Such a line is y = x -1/2.

_____

Truth be told, I found the line y = x -1/2 did not intersect the parabola at all when I thought I was writing the equation for the tangent line. It was an answer to part of your question, just not the part I originally intended.