2 years ago

Pls help with alg II dying

Mathematics

1 answer:

Vsevolod [243]2 years ago

7 0

What are the options they have given?

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3 years ago

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Step-by-step explanation:

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In a garage, the ratio of red cars to Black cars is 8:5, and ratio of black to white cars is 3:4, what is the minimum number of

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4:3=20:15=white cars:black cars
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3 years ago

Find each graph, find (a) AB to the nearest tenth and (b) the coordinates of the midpoint of AB.

Rufina [12.5K]

Answer: AB≈10,8, C(-1;0,5).

Step-by-step explanation:

$(-2,-2)\ \ \ \ (8,-6)\ \ \ \ \overline {AB}=?\\$

Equation of a straight line

$\boxed {\overline {AB}=\sqrt{(x_B+x_A)^2+(y_B-y_A)^2} }$

$x_A=-2\ \ \ \ x_B=8\ \ \ \ y_A=-2\ \ \ \ \ y_B=-6\\\\\overline{AB}=\sqrt{(8-(-2))^2+(-6-(-2))^2} \\\\\overline{AB}=\sqrt{(8+2)^2+(-6+2)^2} \\\\\overline{AB}=\sqrt{10^2+(-4)^2} \\\\\overline{AB}=\sqrt{100+16} \\\\\overline{AB}=\sqrt{116} \\\\\overline{AB}\approx10,8.$

$(-2,-2)\ \ \ \ (0,3)\ \ \ \ the\ midpoint\ C\ of\ AB=?\\$

Line Midpoint Equation

$\boxed {C_x=\frac{X_A+X_B}{2} }}\ \ \ \boxed {C_y=\frac{Y_A+Y_B}{2} }$

$X_A=-2\ \ \ \ \ X_B=0\ \ \ \ \ Y_A==-2\ \ \ \ Y_B=3\\\\C_x=\frac{-2+0}{2} \\\\C_x=\frac{-2}{2} \\\\C_x=-1.\\\\C_y=\frac{-2+3}{2}\\\\C_y=\frac{1}{2}\\\\ C_y=0,5.\\\\Hence,\ \ \ \ C_{AB}(-1;0,5).$

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2 years ago

HOW WOULD YOU PLOT x + 3y = 6?

Xelga [282]

Like this. I used an online graphing calculator called Desmos<span />

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4 years ago