3 years ago

Which pair shows equivalent expressions?

Mathematics

1 answer:

viva [34]3 years ago

3 0

Answer:

Step-by-step explanation:I think

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Find the vertex of the function h(x) = x2 – 4x – 21

lakkis [162]

Answer: (2, -25)

Step-by-step explanation:

The x coordinate of the vertex is $x=-\frac{-4}{2(1)}=2$ .

When x=2, $h(2)=2^2 - 4(2)-21=-25$ .

So, the vertex is (2, -25).

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2 years ago

Daca a+b=82 si a:b=9,r2 afla a si b

MArishka [77]

A+b=82
a:b=9,r=2
a=b*9+2
9b+2+b=82
10b=80
b=8
a=8*9+2=72+2=74
Sper ca asta sa te ajute! :)
Avand in vedere ca aceasta este varianta pentru americani intrebarea ta ar trebui stearsa, pentru varianta in limba romana poti intra pe brainly.ro.Succes! ^^

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mel-nik [20]

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Jana finished 1/4 of her homework at school and 2/3 of it before dinner. How much of her homework has she done

Galina-37 [17]

Answer:

the answer is 11/12

Step-by-step explanation:

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If the area of the Arctic Ocean is 16% of the area of the Atlantic ocean what is the area of the Arctic Ocean

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Idk how big is 16% is 16% like 20

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