Will give the brainiest to whoever answers first 4.what are the coordinates of the vertex of y = –x2 – 12x – 32? 5.what's the y-intercept of y = –x2 – 12x – 32? 6.find any zeros of y = –x2 – 12x – 32.

Question 1:

For this case we have:

The value of the x coordinate of the vertex is with the equation given by:

Where b = -12 and a = -1

therefore,

To find the coordinate and substitute in the equation:

The coordinates of the vertex are (-6.4)

Question 2:

For this case we have the following equation:

By definition, to find the intercept point with the y axis, we make x = 0 and substitute as shown below:

Thus, the intercept point with the y axis is given by (0, -32)

 the y-intercept is (0, -32)

Question 3:

For this case we have the following equation:

The zeros of the function are given by the cut points with the x axis, so, equaling the equation to zero and clearing x we have:

Rewriting the equation we have:

Factoring has the following:

Thus, the solutions are given by:

Therefore, the zeros of the equation are (-4.0) and (-8.0)

(-4.0) and (-8.0)

518,400

step-by-step explanation:

the area is multiplying all the given measurements together.

40 * 18 * 30 * 24 = 518,400

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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