You can ensure correctness in your formulas by carefully checking them using ____.

Mathematics

1 answer:

nalin [4]3 years ago

7 0

You can ensure correctness in your formula by carefully checking them using Range Finder.

Hope this helps! (:

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MrRa [10]

The 4th equation is the answer

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4 years ago

Write the equation of a line perpendicular to 3x + 4y = 9 that passes through (8, - 4)

Arisa [49]

keeping in mind that perpendicular lines have negative reciprocal slopes, let's find the slope of 3x + 4y = 9, by simply putting it in slope-intercept form.

$\bf 3x+4y=9\implies 4y=-3x+9\implies y=-\cfrac{3x+9}{4}\implies y=\stackrel{slope}{-\cfrac{3}{4}}x+\cfrac{9}{4} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope}{-\cfrac{3}{4}}\qquad \qquad \qquad \stackrel{reciprocal}{-\cfrac{4}{3}}\qquad \stackrel{negative~reciprocal}{+\cfrac{4}{3}}\implies \cfrac{4}{3}}$

so we're really looking for the equation of a line whose slope is 4/3 and runs through 8, -4.

$\bf (\stackrel{x_1}{8}~,~\stackrel{y_1}{-4})~\hspace{10em} slope = m\implies \cfrac{4}{3} \\\\\\ \stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-4)=\cfrac{4}{3}(x-8) \implies y+4=\cfrac{4}{3}x-\cfrac{32}{3} \\\\\\ y=\cfrac{4}{3}x-\cfrac{32}{3}-4\implies y=\cfrac{4}{3}x-\cfrac{44}{3}$

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3 years ago

perter's glasses each hold 8 fluid ounces.how many glasses of juice can perter pour from a bottle that holds 5 quarts

NeX [460]

Answer:

8 glasses :)

Step-by-step explanation:

There is 32oz per quart. 8 goes in to 32 a total of four times. So since there are two quarts, Peter can pour 8 glasses.

From everything I've seen it should be 2 quarts from my knowledge. Sorry if this doesn't help!

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Drag the dots to plot (5.5, 4), (-7,1), and (0,–9). y

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5.5 always goes between 5 and 6

remember (x,y) one of the dots goes on the exactly on the axis, you have to drag it down to -9 from the y-axis

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Identify and explain the error made in the following: 2x + 8x = 10x^2

Step2247 [10]

It shouldn’t have ^2

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4 years ago