Multiply (1.4 x 10^2) x (2.0 x 10^-5)

Mathematics

1 answer:

Mars2501 [29]3 years ago

5 0

Answer:

2.8 x 10^-3

Step-by-step explanation:

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Points are collinear if they lie on the same line.

First find the equation of the line that passes through the points B and C.
$B(4, -3) \\
x_1=4 \\ y_1=-3 \\ \\
C(-4,3) \\
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Now plug the coordinates of the given points into the equation and check if they satisfy the equation.

$(0,0) \\
x=0 \\ y=0 \\ \Downarrow \\
0 \stackrel{?}{=} -\frac{3}{4} \times 0 \\
0 \stackrel{?}{=} 0 \\
0=0 \\
\hbox{the point lies on the line} \\ \\
(1,1) \\
x=1 \\ y=1 \\ \Downarrow \\
1 \stackrel{?}{=} -\frac{3}{4} \times 1 \\
1 \stackrel{?}{=} -\frac{3}{4} \\
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-5 \stackrel{?}{=} -\frac{3}{4} \\
-5 \not= -\frac{3}{4} \\
\hbox{the point doesn't lie on the line} \\ \\
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x=6 \\ y=-8 \\ \Downarrow \\
-8 \stackrel{?}{=} -\frac{3}{4} \times 6 \\
-8 \stackrel{?}{=} -\frac{9}{2} \\
-8 \not= -\frac{9}{2} \\
\hbox{the point doesn't lie on the line}$

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<h2>33 is the right answer.</h2>

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