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3 years ago

Please help I need to turn this in tonight

Mathematics

2 answers:

Elanso [62]3 years ago

7 0

Answer:

Step-by-step explanation:

You speaking english

noname [10]3 years ago

7 0

Answer:

f(x) = - (x + 3)² + 12

Step-by-step explanation:

The vertex form:

f(x) = a(x - h)² + k, where (h, k) is the vertex of the parabola and a- the leading coefficient

We have on the graph:

(h, k) = (-3, 12)

Substitute into equation:

f(x) = a(x - (-3))² + 12 = a(x + 3)² + 12

Use the point (0, 3) to find the value of a:

3 = a(0 + 3)² + 12
3 = 9a + 12
9a = 3 - 12
9a = - 9
a = -1

So the function is:

f(x) = - (x + 3)² + 12

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One day in the playground,the ratio of the number of boy to the number of girl is 3:5 later 6girls come, 9boy leave, the ratio o

choli [55]

Answer:

The number of boys are 18 and the number of girls are 30.

Step-by-step explanation:

The ratio of number of girls to the boys = 3 : 5

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b : g = 3 : 5

5 b = 3 g ..... (1)

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