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aksik [14]
3 years ago
6

2.Mrs. Fernandez and Mrs.Bosiljevac invaded the biology lab! They find some bacterial cultures and decide to experiment. Mrs. Fe

rnandez has 160 bacteria in a Petri dish, that double every 10 hours. Mrs. Bosiljevac has 10 bacteria, that quadruple every 5 hours.
a) After how many hours will each culture have the same number of bacteria? Round to the nearest tenth.

b) How many bacteria will there be in each Petri dish at this time? Round your final answer.
Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

Answer:

4 hours 2560 bacteria

Step-by-step explanation:

If you do the multiplication side by side it equaizes itslef at 4 hours

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Abs 12 -- ef de Venta de casas en Venta por que es UN hombre de casas abs

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2 years ago
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What is (x+6)(x+4)(x-3) expand and simplify
mestny [16]

Answer:

x³ + 7x² - 6x - 72

Step-by-step explanation:

Given

(x + 6)(x + 4)(x - 3) ← expand the second and third factor, that is

(x + 4)(x - 3)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x - 3) + 4(x - 3) ← distribute both parenthesis

= x² - 3x + 4x - 12 ← collect like terms

= x² + x - 12

Now multiply this by (x + 6) in the same way

(x + 6)(x² + x - 12)

= x(x² + x - 12) + 6(x² + x - 12) ← distribute both parenthesis

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= x³ + 7x² - 6x - 72

7 0
2 years ago
Which function has a greater y intercept?
Anni [7]

Answer:

Step-by-step explanation:

The function whose graph is given has y-intercept (0, 3), whereas the function f(x) has y intercept (0, 1).  So it is the first that has the greater y intercept.

8 0
2 years ago
5. An airplane takes 4 hr to travel a distance of 4100 km. Another airplane travels at a speed
Mazyrski [523]

Answer:

4.969696 hours

Step-by-step explanation:

The distance traveled is shown through the following equations

Distance = velocity * time

This means that

4100=velocity*4

This means that ariplane 1 travles at 1025 km/hr

We can then subtract 200 from this to find that airplane two travels at a speed of 825 km/hr

Now we need to find how long it takes for that plane to travel 4100

So using the same equation

4100=825*time

Divison will tell us that the answer is around 4.9696 hours which is pretty much 5

7 0
3 years ago
Order of Operations<br> Simplify.<br> 6 + 6+2/4
ki77a [65]
Wouldn't the answer be 12.5 because 2/4 is 0.5 and 6+6 is 12
3 0
3 years ago
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