A colony of 100 bacteria doubles in size every 60 hours. What will the population be 180 hours from now?

Mathematics

1 answer:

yulyashka [42]2 years ago

4 0

Answer:

600

Step-by-step explanation: $100\times2\times\frac{180}{60}$

Cross out the common factor

$100\times2\times3$

Calculate the product or quotient

$200\times3$
$600\ YOUR\ ANSWER\ which\ can\ also\ be\ written\ as\ 6\times{10}^2\$

I hope this helps you

:)

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Complete the square to form a perfect square trinomial x^2-14x+

fiasKO [112]

Answer: x^2 - 14x + 49

Explanation:

1) Divide the coefficient of x by 2:

14 / 2 = 7

2) so you have to add 7^2 = 49

x^2 - 14x + 49

3) that trinomial is equivalent to:

=> (x - 7)^2

4) prove that using the formula (a - b)^2 = a^2 - 2ab + b^2

(x - 7)^2 = x^2 - 14x + 49

Then you have to add 49 to complete the square. and form a perfect square trinomial.

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