3 years ago

the vertex of the parabola is at the point (2,-4). Which of the following could be this parabola’s equation?

Mathematics

1 answer:

7nadin3 [17]3 years ago

8 0

Answer: (A) is the answer

100% sure

Step-by-step explanation:

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Please someone helpppp ):

skad [1K]

Answer:

70 -20x = 60 -15x

Step-by-step explanation:

The amount of money left on Josh's card is ...

70 -20x

The amount of money left on Jessica's card is ...

60 -15x

These amounts are the same when ...

70 -20x = 60 -15x

_____

<em>Additional comment</em>

The solution to this equation is ...

10 = 5x ⇒ x = 2 . . same amount after purchase of 2 pizzas

3 0

2 years ago

Find the measure of each angle indicated.

Alexandra [31]

50 because 80+50+x=180 (inside triangle) x=130 180-130= 50 (angle outside triangle)

5 0

2 years ago

Given: M(-4,-1), B(-5,-3) find the midpoint

Dmitry [639]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
M&({{ -4}}\quad ,&{{ -1}})\quad 
% (c,d)
B&({{ -5}}\quad ,&{{ -3}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left(\cfrac{{{ -5}}-4}{2}\quad ,\quad \cfrac{-3-1}{2} \right)$