3 years ago

HELPMEPLZZZZZ!!!

Mathematics

1 answer:

Phoenix [80]3 years ago

5 0

The answer is x=9 that what I got when u did it

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3 years ago

The graph shows the relationship between time

rusak2 [61]

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Find an equation of the plane consisting of all points that are equidistant from (-3, 5, -4) and (-5, 0, 4), and having -2 as th

Firdavs [7]

Answer:

-2x-5y+8z+4.5=0

Step-by-step explanation:

Let (x,y,z) be the coordinates of the point lying on the needed plane. This point is equidistant from the points (-3, 5, -4) and (-5, 0, 4), so

$d_1=\sqrt{(x-(-3))^2+(y-5)^2+(z-(-4))^2}=\sqrt{(x+3)^2+(y-5)^2+(z+4)^2}\\ \\d_2=\sqrt{(x-(-5))^2+(y-0)^2+(z-4)^2}=\sqrt{(x+5)^2+y^2+(z-4)^2}\\ \\d_1=d_2\Rightarrow \sqrt{(x+3)^2+(y-5)^2+(z+4)^2}=\sqrt{(x+5)^2+y^2+(z-4)^2}\\ \\(x+3)^2+(y-5)^2+(z+4)^2=(x+5)^2+y^2+(z-4)^2\\ \\x^2+6x+9+y^2-10y+25+z^2+8z+16=x^2+10x+25+y^2+z^2-8z+16\\ \\-4x-10y+16z+9=0\\ \\-2x-5y+8z+4.5=0$

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3 years ago

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Kelly works two jobs. She usually works at a retail store for 7 hours during the day and is paid $22.22 per hour by the store. I

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Answer:

Hey,

so if she works for seven hours at both jobs then we multiply how much she gets paid per hour times seven or 22.22*7=155.54 and 13.55*7=94.85. Then we add what is underlined, 155.54+94.85= our answer which is 250.39 per day.

Wbob1314 hope it helped

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nekit [7.7K]

Answer:

A. x-axis and C. Quadrant 1

Step-by-step explanation:

(2,0) 2 is the x and 0 is the y. so if there is no y to go up then it's on the x-axis.

It's in Quadrant 1 cause it has no negatives.

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4 years ago