2 years ago

Are all rectangles similar

2 answers:

5 0

Yes. All rectangles are similar no matter how big or small they are (of course, they have to stay as a rectangle)

hope this helps

EastWind [94]2 years ago

3 0

Yes all rectangles are similar but not all are equal, (geometry)

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PLEASE HELP

Rudik [331]

$y=75\ \ \ \ x=5\\\\
y=?\ \ \ \ \ x=3\\\\
proportion:\\
\frac{75}{y}=\frac{5}{3}\ \ \ | cross\ multiplication\\\\
75*3=5y\\\\
225=5y\ \ \ | divide\ by\ 5\\\\
y=45
$

5 0

3 years ago

What is the equation for a line that has a slope of 3 and passes through (-1, 9)

krok68 [10]

Answer:

the answer is y=3x+9 if you are looking for it to be in slope intercept form

7 0

2 years ago

6 points

kodGreya [7K]

Answer:

$y=-2\,(x+3)^2-3$

Step-by-step explanation:

Notice that they are asking you to write the equation of the parabola in vertex form, that is using the coordinates of the vertex $(x_v,y_v)$ in the expression:

$y-y_v=a\,(x-x_v)^2\\y=a\,(x-x_v)^2+y_v$

we can start by directly replacing the given vertex coordinates (-3, -3) in the expression, and then using the extra info on the point the parabola goes through in order to find the parameter $a$ :