Does anyone know the answer to this

Mathematics

1 answer:

dolphi86 [110]2 years ago

6 0

Answer:

Step-by-step explanation:

Hope this helps! Good Luck!

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Tickets to the school dance cost $3.00 in advance or $5.00 at the door. There were a total of 184 tickets sold, raising $688. Ho

GenaCL600 [577]

Answer: They sold 68 tickets at the door
688-920= -2x= -232
2x=232/2=116
184-116=68

5 0

2 years ago

9 < 11, so 9(5) < 11(5) true or false?

Zolol [24]

It is true since you’re multiplying the same number on both the sides

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 $a$ :