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jek_recluse [69]
3 years ago
14

I need help with this please...

Mathematics
2 answers:
Sindrei [870]3 years ago
7 0

Answer:

Try (8, 2) and (12, 3)

You can find certain points on the g and just divide by 2.

Sati [7]3 years ago
5 0
Try (8,2) and (12,3)
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During a research​ experiment, it was found that the number of bacteria in a culture grew at a rate proportional to its size. At
Alina [70]
DB/dt = k*B
dB/(kB) = dt
Integrating both sides:
1/k*ln|B| = t + C
B = C*e^(kt)
At time t = 0, B = 4000 and at time t = 3 (3 hours past 9 AM), B = 4500
4000 = C
4500 = 4000*e^(3k) => k = 1/3*ln(9/8)
At time t = 15 (Midnight), B = 4000*e^(1/3*ln(9/8)*15) = 4000*(9/8)^5 = 7208 bacteria
3 0
3 years ago
Which of the following is an arithmetic sequence?
enot [183]

Answer:

The third sequence.  

Step-by-step explanation:

In an arithmetic sequence, the difference between two consecutive terms is the same.

For each option, find the difference between consecutive terms:

First option:

  • 4 - 2 = 2.
  • 8 - 4 = 4.
  • 16 - 8 = 8.

The differences are not the same. As a result, this option is not an arithmetic sequence.

Second option:

  • 4 - 12 = -8.
  • \displaystyle \frac{4}{3} - 4 = -\frac{8}{3}.
  • \displaystyle \frac{16}{3} - \frac{4}{3} = \frac{12}{3} = 4.

The differences are not the same. As a result, this option is not an arithmetic sequence, either.

Third option:

  • \displaystyle -\frac{1}{2} - \frac{1}{2} = -1.
  • \displaystyle -\frac{3}{2} - \left(-\frac{1}{2}\right) = -\frac{3}{2} + \frac{1}{2} = -1.
  • \displaystyle -\frac{5}{2} - \left(-\frac{3}{2}\right) = -\frac{5}{2} + \frac{3}{2} = -1.

The differences are all -1. As a result, this option is indeed an arithmetic sequence. Its common difference is (-1).

Fourth option:

  • \displaystyle -\frac{1}{2} - \frac{1}{2} = -1.
  • \displaystyle \frac{1}{2} - \left(-\frac{1}{2}\right) = \frac{1}{2} + \frac{1}{2} = 1.
  • \displaystyle -\frac{1}{2}\right - \frac{1}{2} = -1.

The differences are varying between 1 and -1. As a result, this option is not an arithmetic sequence.

3 0
3 years ago
find the median of the following data classes 100-150,150-200,200-250,250-300,300-350 and the frequency is 22,18,25,20,15​
kaheart [24]

Answer:

65

Step-by-step explanation:

median = (N+1)/2

=(100+1)/2

= 50.5

cf just greater than 50.5 is 65 .So, median is 65.

3 0
3 years ago
Help please look at the pic attached I will give 50 points and mark brainliest
maw [93]

Answer:

  • x = 8, x = 10

Step-by-step explanation:

Q3

Corresponding angles are congruent

  • 6x - 11 = 37
  • 6x = 11 + 37
  • 6x = 48
  • x = 8

Q4

Angle2 is complementary with 142 and alternate interior with  2(x + 9)

  • 142 + 2(x + 9) = 180
  • 142 + 2x + 18 = 180
  • 2x + 160 = 180
  • 2x = 20
  • x = 10
3 0
3 years ago
Read 2 more answers
a grandfather is 8 times older than his grand daughter. in 8 years the grandfather will be 5 times as older as his grand daughte
mash [69]

Answer:

256 it's the answer

Step-by-step explanation:

HOPE THAT HELPS!!!!!!!!

6 0
3 years ago
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