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Elanso [62]
3 years ago
11

Write the expression in lowest terms.

Mathematics
1 answer:
V125BC [204]3 years ago
7 0

Answer:

Step-by-step explanation:

You need to use parentheses around the numerator and denominator.

(x-3)(3-x) = -1

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Somebody please help and explain it.
s2008m [1.1K]

Explanation is in the file

tinyurl.com/wpazsebu

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3 years ago
What is the area of a triangle with a angle of 80 and a radius of 5
inysia [295]
The formula for sector area is simple - multiply the central angle by the radius squared, and divide by 2: Sector Area = r² * α / 2.
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Is anyone good at math and can help with this, or at least the first one and explain how to do it?​
Anna007 [38]

now, bear in mind that all these ones are lines, and to graph a line all you need is two points, so let's pick a couple of random values for say "x" and let's see what we get for "y" and that's our x,y point.

3)

9x+4y=-16\implies \stackrel{\textit{using x = 0}~\hfill }{9(0)+4y=-16}\implies 4y=-16 \\\\\\ y=\cfrac{-16}{4}\implies y=-4~\hspace{10em}(0~~,~~-4) \\\\[-0.35em] ~\dotfill\\\\ 9x+4y=-16\implies \stackrel{\textit{using x = -4}~\hfill }{9(-4)+4y=-16}\implies -36+4y=-16 \\\\\\ 4y=20\implies y = \cfrac{20}{4}\implies y = 5~\hspace{10em}(-4~~,~~5)

check the red line in the picture below.

4)

5x+2y=8\implies \stackrel{\textit{using x = 0}~\hfill }{5(0)+2y=8}\implies 2y=8\implies y=\cfrac{8}{2}\implies y=4 \\\\\\ ~\hspace{10em}~\hspace{10em}(0~~,~~4) \\\\\\ 5x+2y=8\implies \stackrel{\textit{using x = 4}~\hfill }{5(4)+2y=8}\implies 20+2y=8\implies 2y=-12 \\\\\\ y=\cfrac{-12}{2}\implies y=-6~\hspace{10em}(4~~,~~-6)

check the blue line in the picture below.

8 0
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a building is drawn with a scale of 1in :3ft. The height of the drawing is 1ft 2in. After a design change, the scale is modified
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46 feet tall is how tall the new drawing is.

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An angle measures 20° more than the measure of its supplementary angle. What is the measure of each angle?
nevsk [136]

Supplementary angles sum to 180 degrees.

So if one angle is 20 degree more than the other...

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2x+20=180

2x=160

x=80

x+20=100

answer: 80° and 100°

4 0
3 years ago
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