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MaRussiya [10]
3 years ago
8

The population of a bacteria colony is growing exponentially, doubling every 6 hours. If there are 150 bacteria currently presen

t, how many (to the nearest ten bacteria) will be present in 10 hours
Mathematics
1 answer:
marusya05 [52]3 years ago
8 0

Answer:

If rounded to the nearest 10 bacteria, then it would be 500 bacteria.

Step-by-step explanation:

First multiply 150 by two in order to get 300, that leaves 4 hours to figure out. From there you can figure out the rest by seeing that 4 is 2/3 of 6. I converted it into the decimal number .66. Multiply 300 by .66 to get 198 and then add it to 300 to get 498. Then just round it up to the nearest 10 bacteria which leaves you with the final answer of 500 bacteria.

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10 POINTS Brainliest!!!
Valentin [98]

Answer:

Neither

Step-by-step explanation:

Can be determined because there is enough information (Length, width, and height).

Not congruent because from the picture itself, the figures are in different sizes.

Not similar because:

The height ratio is not the same as the ratios of other dimensions.

1 : 4 is not similar to 6 : 12 and 4 : 8

3 0
3 years ago
Theorem: The segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length.
Taya2010 [7]

Answer:

Segment DE is half the length of segment AC. -- Substitution property of equality

Step-by-step explanation:

Here is given a proof for proving line joining mid segment is parallel and half the length of third side.

Stepwise proof is given in two columns

We find that for every line there is a justification as

STatement                                        Justification

D and E coordinates found out       MId point formula

DE and BC are measured                Distance formula

DE=1/2 BC                                          Substitution property of equality

This justification was missing in the given proof and with this included proof would be complete

4 0
3 years ago
Read 2 more answers
Given P = 2 (l + b) when l = 15 and P = 50,<br> find b
Firdavs [7]

Answer:

b = 10

Step-by-step explanation:

P = 2 (l + b)

l = 15

P = 50

Substitute

50 = 2 (15 + b)

multiply

50 = 30 + 2b

subtract

20 = 2b

divide

b = 10

6 0
3 years ago
Read 2 more answers
Kendall worked 25.5 hours one week.
Harman [31]
$318.75

multiply 25.5 by 12.5 which equals 318.75.

to know where to put the decimal, you count the numbers to the right of the decimal point. in this equation youre multiplying 25.5 and 12.5. there are 2 numbers to the right of the equation so in your answer, there should be 2 numbers to the right of the decimal.
8 0
3 years ago
Given:<br> f(x) = x2 - 6x + 13<br> What is f (4)?
lutik1710 [3]

Answer:

5

Step-by-step explanation:

f(x) = x^2 -6x+13

Let x=4

f (4) = 4^2 -6(4) +13

       = 16 -24 +13

       = 5

7 0
3 years ago
Read 2 more answers
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