3 years ago

Need help please help

1 answer:

azamat3 years ago

7 0

Answer:

Hope you get it right! :)

Step-by-step explanation:

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Andre45 [30]

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7,000 × 1.04¹³ = 11,656

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Serjik [45]

The percent of people of smoke cigarettes is 20.9%..

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damaskus [11]

Well you didn't finish your sentence

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8_murik_8 [283]

Answer: our fruitful chance

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3 years ago

Marrrta [24]

It looks like you're saying

$f(x) = ax^2 + bx + c$

and you're asked to find $a,b,c$ given $f(0)=-4$ , $f(1)=-1$ , and $f(-1)=-5$ .

Evaluate $f$ at the three given points:

$x=0 \implies f(0) = \boxed{c = -4}$

$x=1 \implies f(1) = -1 = a + b + c \implies a+b = 3$

$x=-1 \implies f(-1) = -5 = a - b + c \implies a - b = -1$

$(a+b) + (a-b) = 3 + (-1) \implies 2a = 2 \implies \boxed{a=2}$

$a-b = -1 \implies \boxed{b=3}$

and the mapping is $f(x) = 2x^2 + 3x - 4$ .

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2 years ago