3 years ago

CAN I GET SOME HELP PLEASE?????Brainliest??

Mathematics

1 answer:

Scrat [10]3 years ago

6 0

Answer:

The answer is A

Step-by-step explanation:

Traingle ABC is congruent to traingle EFD by hl rule

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The ratio of boys to girls at the beach clean up was 7:8. If there were 42 boys how many girls were there?

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Answer:

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Step-by-step explanation:

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4 years ago

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The function y = x 2 – 4x + 8 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence

Alla [95]

Answer:

Exterme Value: $(2,4)$ .

The bird reaches its minimum height which is 4ft affter covering a horizontal distance of 2 ft.

Step-by-step explanation:

The given function is $y=x^2-4x+8$ .

We add and subtract the square of half the coefficient of x.

$y=x^2-4x+(-2)^2-(-2)^2+8$ .

The first three terms form a perfect quadratic trinomial.

$y=(x-2)^2+4$ .

This function is now written in the form $y=a(x-h)^2+k$ , where (h,k) is the extreme value(vertex).

The extreme value or the vertex is $(2,4)$ .

Interpretation:

The bird reaches its minimum height which is 4ft affter covering a horizontal distance of 2 ft.

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