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RideAnS [48]
3 years ago
10

What is the sum o 12/13+(-1/13

Mathematics
1 answer:
Vlad [161]3 years ago
7 0
12/13=.923076923 (-.33333333) -.307692305 or -.30

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54x^3y+ 81x^4y^2 factorise​
vampirchik [111]

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8 0
3 years ago
A tv originally cost 400$ how much is the final cost of the tv if the sales tax is 8%
weeeeeb [17]

Multiply 400 by 8% and add it to 400:

400 x 0.08 = 32

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Answer: $432

6 0
3 years ago
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
3 years ago
How to solve 243.6divided by 8
OLga [1]

Answer:

the answer is 30.45

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What’s the answer???
Vikki [24]

Answer:

C = pi x 12/ A

Step-by-step explanation:

Formula is 2pi r

2 x r is diameter

diameter x pi = circumference

12 is diameter of this because radius x 2 is diameter.

therefore, 12 pi = c

Hope this helped! If it did, click Thanks!

8 0
3 years ago
Read 2 more answers
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