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pshichka [43]
3 years ago
15

I have to finish this Ixl. Can you please help me it's due tomorrow and it's 10:15

Mathematics
1 answer:
Lyrx [107]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

Gradient = rise/run

rise = 80 - 60 = 20

run = 70 - 40 = 30

Gradient = 20/30 = 2/3

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I think it is 290 because you add the three numbers
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4 years ago
What is the perimeter of a sandbox with the coordinates of (12,14),(12,17),and (16,14)
natta225 [31]

Check the picture below.

5 0
3 years ago
The admission fee at an amusement park is $12, and each ride costs $3.50. The park also offers an all-day pass with unlimited ri
gavmur [86]
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y=12+3.5x
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6 0
3 years ago
The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate
Veronika [31]

It takes 8.35 hours for the size of the sample to double

Step-by-step explanation:

The form of the continuous exponential growth model is

A=Pe^{rt} , where

  • A is the new value
  • P is the initial value
  • r is the rate of growth or decay  in decimal
  • t is the time

∵ The growth rate is 8.3%

∴ r = 8.3 ÷ 100 = 0.083

∵ The size of the sample will doubled in t hours

∴ A = 2 P

Use the formula of the contentious exponential growth above

∵ 2P=Pe^{0.083t}

- Divide both sides by P

∴ 2=e^{0.083t}

- Insert ㏑ in both sides

∴ ln(2)=ln(e^{0.083t})

- Remember ln(e^{n})=n because ㏑(e) = 1

∴ ln(2)=0.083t

- Divide both sides by 0.083

∴ \frac{ln(2)}{0.083}=t

∴ t = 8.35 hours to the nearest hundredth

It takes 8.35 hours for the size of the sample to double

Learn more:

You can learn more about the logarithmic function in brainly.com/question/1447265

#LearnwithBrainly

4 0
4 years ago
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