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3 years ago

7

PLEASE HELP, WILL MARK BRAINILEST

1 answer:

stealth61 [152]3 years ago

8 0

Answer:

I would say B is the answer

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The population of bacteria in a culture doubles every 14 hours. How long will it take for

Snezhnost [94]

Answer: 22 hours 11 minutes

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

$P=P_o\cdot e^{(kt)}\\\\\text{Since the initial population is doubled in 14 hours, then:}\\2P_o=P_o\cdot e^{k\cdot 14}\\2=e^{14k}\\ln\ 2=ln\ e^{14k}\\ln\ 2=14k\\\\\dfrac{ln\ 2}{14}=k\\\\0.0495=k\\\\\\\text{Now that the k-value has been determined, we can find the time when the}\\\text{population is tripled:}\\3P_o=P_o\cdot e^{0.0495t}\\3=e^{0.0495t}\\ln\ 3=ln\ e^{0.0495t}\\ln\ 3=0.0495t\\\\\dfrac{ln\ 3}{0.0495}=5\\\\22.19=t\\\\22\ hrs +0.19\ hrs$

$22\ hours + \bigg[\dfrac{19}{100}=\dfrac{x}{60}\bigg]\\\\22\ hours + 11\ minutes$

4 0

2 years ago

The H.C.F. of 3150 and a number is 42. Which of the following can be the number?

Eduardwww [97]

$2^{2} *3^{2} *5=4*9*5=4*45=180\\2^{2} *3^{2} *5^{2} =4*9*25=36*25=900\\2^{2} *3*7=4*3*7=4*21=84\\2^{2} *3^{2} *7=4*9*7=36*7=252\\$

$raspunsul, e, B, 900$

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2 years ago

What is 110y+10=340 for algebra grade 7

algol [13]

<span> 110y+10=340

Subtract 10 from both sides

110y=330

Divide by 110 to get variable on its own

</span>110y/110=330/110

y=3

7 0

3 years ago

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for his long-distance phone service, Kareem pays a $2 monthly fee plus $0.12 per minute. Last month, Kareem's long-distance bill

beks73 [17]

$13.52-$2=$11.52

$11.52 \div 0.12 = 96$

Kareem was billed for 96 minutes.

Hope this helps. - M

8 0

3 years ago

What is the value if f(0)?

ioda

Answer:

D

Step-by-step explanation:

Where f(0) is or x=0, y= 4

5 0

2 years ago

Read 2 more answers