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2 years ago

Please help!!

Mathematics

1 answer:

meriva2 years ago

4 0

Answer:

Step-by-step explanation:

lolol

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The population of bacteria in a petri dish doubles every 24 h. The population of the bacteria is initially 500 organisms. How lo

liberstina [14]

Answer:

16.34 hours

Step-by-step explanation:

According to the given information we can see that the case is of exponential growth

Hence, we will use the formula

$A=P(2)^\frac{t}{24}$

Here A =800 is the amount that is needed to reach

P is the initial amount that is 500

We have to find the time it will take to reach 800 that is we need to find t

On substituting the values in the formula we get

$800=500(2)^\frac{t}{24}$

On simplification we get

$\Rightarrow\frac{8}{5}=(2)^\frac{t}{24}$

Taking log on both sides we get

$\Rightarrow\log\frac{8}{5}=\log(2)^\frac{t}{24}$

using $\log\frac{m}{n}=\log m-\log n$

And $\log a^m=m\log a$

$\Rightarrow\log{8}-\log{5}=\frac{t}{24}\log2$

Now substituting values of log 8=0.903, log 5=0.698 and log 2=0.301 we get

$\Rightarrow 0.903-0.698=\frac{t}{24}0.301$

$\Rightarrow 0.205=\frac{t}{24}0.301$

$\Rightarrow \frac{0.205}{0.301}\cdot 24=t$

$\Rightarrow t=16.34$

8 0

3 years ago

Read 2 more answers

1 1/4 + ( 3 2/3 + 5 3/4)

Dmitrij [34]

Answer:

10.6

10+ 2/3

Step-by-step explanation:

6 0

3 years ago

Find the distance between (12,10) and (0,5)

irakobra [83]

Answer:

length = 13

Step-by-step explanation:

3 0

2 years ago

Find the value of x by filling in the blanks in the provided statement-reason solution. N = MP PLEASE HELP QUICKLYYY

seraphim [82]

Picture relating to the question can be found in the picture attached below.

Answer:

Angle DCA = Angle CAB

Angle A + Angle B + Angle C = 180°

18 + 3x + 3x = 180

27°

Step-by-step explanation:

For 1:

Angle DCA = Angle CAB (Alternate angles are equal)

Angle DCA = 18°, Hence, CAB = 18°

Angle A + Angle B + Angle C = 180° (sum of interior angles in a triangle)

3.)

Angle A = 18°

Angle B = 3x

Angle C = 3x

18° + 3x + 3x = 180°

4.)

18 + 3x + 3x = 180

18 + 6x = 180

6x = 180 - 18

6x = 162

x = 162 / 6

x = 27°

6 0

2 years ago

!Brainliest!

harina [27]

Answer:

m = 3

n = 14

p = 2

Step-by-step explanation:

Given:

$\frac{7}{x}-\frac{3}{2}=\frac{n-mx}{px}$

We need to find the values of m, n, p

Solution:

We will first solve the L.H.S

L.H.S = $\frac{7}{x}-\frac{3}{2}$

Now we will first make the denominator common by taking L.C.M

$=\frac{7\times 2}{x\times 2}-\frac{3\timesx}{2\timesx}\\\\= \frac{14}{2x}-\frac{3x}{2x}$

Now the denominator is common hence we will subtract the numerators.

L.H.S $= \frac{14-3x}{2x}$

Now Comparing the the value of L.H.S with R.H.S we can say that;

$\frac{14-3x}{2x}=\frac{n-mx}{px}$

m = 3

n = 14

p = 2

4 0

3 years ago

Read 2 more answers