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slavikrds [6]
3 years ago
13

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function: y=4x^2-8x-3

Mathematics
1 answer:
In-s [12.5K]3 years ago
6 0

D. x= -1; vertex: (-1,-7) 
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On Friday, there were x students at the baseball game. On Monday, there were half as many students at the game as there were on
gayaneshka [121]

Answer:

2\frac{1}{2}x - 32

Step-by-step explanation:

On Friday, there were x students at the baseball game.

On Monday, there were 1/2 as many students, that is: x/2 students

On Wednesday, there were 32 fewer students at the game as there were on Friday, that is x - 32.

Tickets are sold for each student. Therefore, the number of tickets sold on all three days will be the same as the number of students that were at the games on the three days.

The number of students present on the three days is:

x + x/2 + x - 32

= 2x + \frac{1}{2}x - 32\\ \\= 2\frac{1}{2}x - 32

The number of tickets sold can therefore be represented by 2\frac{1}{2}x - 32

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3 years ago
The ratio of two side lengths for the triangle is given. What is the value of “q” AB:BC is 3:4
Vera_Pavlovna [14]

Answer:

q=8.5

Step-by-step explanation:

The ratio of the side lengths (AB) and (BC) is given. One is also given an expression for the side lengths of each of these sides. Set up a proportion to describe this scenario, then solve using cross products;

\frac{AB}{BC}=\frac{3}{4}

Substitute,

\frac{60}{10q+15}=\frac{3}{4}

Cross products,

\frac{60}{10q+15}=\frac{3}{4}

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Inverse operations,

240=30q+45\\\\195=30q\\\\8.5=q

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2 years ago
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Points Q, J and M are not collinear

Step-by-step explanation:

Three points cannot be collinear if they are not coplanar (on the same plane), and M is on a different plane than Q. J is located on both planes.

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Use any model to solve the story problem. A plumber took 1/8 of his pipes and separated them into 5 equal bundles. What fraction
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