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2 years ago

Which number is irrational

Mathematics

1 answer:

ollegr [7]2 years ago

7 0

Answer:

sqrt(32)

Step-by-step explanation:

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A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has i

bija089 [108]

Answer: $\bold{a)\ P(t)=P_o\cdot e^{t\cdot ln(2.7)}}$

b) 5314

c) ln 2.7

d) 4.6 hrs

<u>Step-by-step explanation:</u>

$P(t) = P_o\cdot e^{kt}\\\\\bullet \text{P(t) is the number of bacteria after t hours} \\\bullet P_o\text{ is the initial number of bacteria}\\\bullet \text{k is the rate of growth}\\\bullet \text{t is the time (in hours)}\\\\\\270=100\cdot e^{k(1)}\\2.7=e^k\\ln\ 2.7=\ln e^k\\\boxed{ln\ 2.7=k}\\\\\text{So the equation to find the number of bacteria is: }\boxed{P(t)=P_o\cdot e^{t\cdot ln(2.7)}}\\\\\\P(4)=100\cdot e^{4\cdot ln(2.7)}\\.\qquad =\boxed{5314}$

$10,000=100\cdot e^{t\cdot ln(2.7)}\\100=e^{t\cdot ln(2.7)}\\ln\ 100=ln\ e^{t\cdot ln(2.7)}\\ln\ 100=t\cdot ln(2.7)\\\dfrac{ln\ 100}{ln\ 2.7}=t\\\\\boxed{4.6=t}$

4 0

3 years ago

What is the answer to... 5m+8n-2(3m-n)? Show step by step

Alexxx [7]

Answer:

The answer is

Step-by-step explanation:

5m+8n-2(3m-n)

Expand the terms in the bracket

That's

5m + 8n - 6m + 2n

Group like terms

We have

8n + 2n + 5m - 6m

Simplify

The final answer is

10n - m

Hope this helps you

6 0

3 years ago

This is an Accounting Question, but there's no subject for it!

kykrilka [37]

it is correct

Step-by-step explanation:

6 0

3 years ago

HELP PLZZZSS EASYYYY 10 POINTS *easy*

zalisa [80]

Answer:

A. 3:30.

Step-by-step explanation:

180 is 90+90 so that would put it in 3:30.

4 0

3 years ago

Determine whether each exponential equation is a decay or a growth.

kolezko [41]

Answer:

OHHH THE ANSWER IS 1 would be pie 7 and the last one is .9 ok thanks for 15 points

Step-by-step explanation:

STEP 1: GO GET A CALULATOR

STEP 2 GO F UR STEP SIS

5 0

2 years ago