2 years ago

Look at the photo! Please help

Mathematics

1 answer:

torisob [31]2 years ago

3 0

The answer is A

Explanation:

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Initially, there were only 86 weeds in the garden. The weeds grew at a rate of 8% each week. The following function represents t

ElenaW [278]

Answer:

g(x) = 86·1.011055^x

Step-by-step explanation:

So we don't confuse ourselves, we'll call the growth function by day g(x). If x is to represent days, then x/7 represents weeks, and we can write ...

g(x) = f(x/7) = 86·1.08^(x/7)

g(x) = 86·(1.08^(1/7))^x

g(x) = 86·1.011055^x

7 0

2 years ago

Read 2 more answers

How to complete the square with a leading coefficient?

Kamila [148]

Factor out the leading coefficient:

$ax^2+bx+c=a\left(x^2+\dfrac bax+\dfrac ca\right)$

Now complete the square:

$x^2+\dfrac bax+\dfrac ca=x^2+\dfrac bax+\dfrac{b^2}{4a^2}-\dfrac{b^2}{4a^2}+\dfrac ca=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2}{4a^2}+\dfrac{4ac}{4a^2}=\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a^2}$

Now, redistributing the leading $a$ gives

$a\left(x+\dfrac b{2a}\right)^2-\dfrac{b^2-4ac}{4a}$