Please help me ----------------

Parabola,Can someone please help me please ?

ivanzaharov [21]

Answer:

a. opens: downward

b. vertex: (4, 2)

c. x-intercepts: (2, 0), (6, 0); y-intercept: (0, -6)

d. a.o.s.: x = 4

Step-by-step explanation:

Based on the picture the parabola opens downwards. Right away you know that the "a" value in the parabola's equation will be negative.

To find the coordinates of the vertex, you'll need to look at the picture. Remember: look on the x-axis first and then the y-axis next.

The very top of the parabola (maximum point = vertex) is at the x-value of 4 and the y-value of 2. This means the coordinates of the vertex of this parabola is (4, 2).

To find the x-intercepts, look at the x-axis and see where the parabola crosses it. The parabola goes through the x-axis at the x-values of 2 and 6, so the x-intercepts of this parabola are (2, 0) and (6, 0).

To find the y-intercept, look at the y-axis and see where the parabola crosses it. The parabola intersects the y-axis at the y-value of -6, so (0, -6) would be the y-intercept.

The equation for the axis of symmetry of a graph is always x = h, where h is the x-value of the coordinate of the vertex.

Since the vertex is (4, 2), where 4 = h, the equation of the axis of symmetry would be x = 4.

4 0

4 years ago

Hi please help i’ll give brainly but please show your work.

natima [27]

Answer:0.028

Step-by-step explanation: 0.07 x 0.4= 0.028

4 0

3 years ago

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There’s a problem with chair B. In order to fix it, the mechanics need to know the angle formed at the center of the ferris whee

dybincka [34]

Answer:

60 degrees

Step-by-step explanation:

The wheel is a circunference, so it has a total of 360 degrees. As we have 12 chairs evenly spaced, this 360 degrees will also be divided evenly, so the angle between each pair of chairs is equal to 360 / 12 = 30 degrees.

As we want the angle between chairs B and D, we have two spaces between chairs (the space between B and C and the space between C and D), so the angle is 2 * 30 = 60 degrees

5 0

3 years ago

Reflect triangle A in the line y = 1.

Over [174]

Answer:

Step-by-step explanation:

In the figure attached,

Vertices of the triangle ABC are A(-4, 4), B(-1, 4) and (-1, 2)

When we reflect this figure across a line y = 1

Vertices of the image triangle A'B'C' will be

Coordinates of A'

A(-4, 4) → A'[(1 + 5), 4]

→ A'(6, 4)

Coordinates of B'

B(-1, 4) → B'(-1 + 4, 4)

→ B'(3, 4)

Coordinates of C',

C(-1, 2) → C'[(-1 + 4), 2]

→ C'(3, 2)

Graph these points and join them to form the image triangle A'B'C'.

3 0

4 years ago

Peter is a beekeeper who sells jars of honey and honeycombs at the market. For every 10 jars of honey he

adell [148]

Options B and C,

20 jars of honey and 6 honeycombs

30 jars of honey and 9 honeycombs

Since 20/10 = 2, we need to make sure that the number of honeycombs is 3*2 = 6.

The same goes for the Option C, since 30/10 = 3, we need to make sure that 3*3 = 9.

Okay, that might have been a bad explanation.

For Option B, we know that he has 20 jars of honey, right? Since he brings 10 jars of honey for every 3 honeycombs, we divide 20 by 10 (20/10) , which gives us 2. This means that he brought 2 groups of ten jars of honey. We also know that for every group of ten jars, he brings 3 honeycombs, meaning that he brought 2 groups of three honeycombs. 3 times 2 is 6, showing that the Option B is correct. The same goes for Option C. He brought 3 groups of ten jars of honey, and 3 groups of 3 honeycombs.

3 0

4 years ago

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