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AURORKA [14]
3 years ago
13

Y

Mathematics
1 answer:
Lilit [14]3 years ago
7 0

9514 1404 393

Answer:

  400

Step-by-step explanation:

The statement of proportionality means the ratio of y to √x is the same. Then we can write ...

  (√x)/100 = (√81)/45

  √x = 100(√81)/45 = 20 . . . . . multiply by 100

  x = 20² = 400

x is 400 when y is 100.

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A square garden has area 1764meter find it's length and perimeter<br><br>​
Aneli [31]

Answer:

area \: of \:  a \: squre =  {a}^{2}  \\  {a}^{2}  = 176 \\ a = 13.26m \\ perimeter = 4a = 4 \times 13.26 = 53.04m^2 \\ thank \: you

5 0
3 years ago
Read 2 more answers
A certain bacteria population increases continuously at a rate proportional to its current number. The initial population of the
luda_lava [24]

Answer: C

Step-by-step explanation:

This describes an expotential function

At t = 0, P = 70

Therefore, C = 70

P = 70 e^kt

Solve for k by plugging in (4,360)

k = 0.4094

plug in t(7 hours)

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3 0
3 years ago
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After a special medicine is introduced into a petri dish full of bacteria, the number of bacteria remaining in the dish decrease
boyakko [2]

After a special medicine is introduced into a petri dish full of bacteria, Every second, the number of harmful bacteria remaining in the body decays by a factor of 0.97

<h3>What is bacteria?</h3>

Generally, a kind of unicellular bacteria that has characteristics with many disease-causing organisms, such as having a cell wall but lacking organelles and an organized nucleus.

In conclusion, When a certain medication is put into a petri dish that is full of bacteria, the amount of pathogenic bacteria that are still present in the body decreases by a factor of 0.97 every single second.

Read more about bacteria

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6 0
2 years ago
What is the quotient of 1.876 x 10^2 and 6.7 x 10^2 expressed in scientific notation?
neonofarm [45]

Answer:

345600000000 and 670

Step-by-step explanation:

6 0
3 years ago
Hal rolls a fair six-sided die 60 times. What is the best prediction of the number of times Hal will roll a 3 or a 6?
spin [16.1K]

Answer:

roughly 20 times

Step-by-step explanation:

2/6 = 1/3 is the probability he will roll a 3 or a 6

1/3 * 60 = 20.

It's not exact because you can't predict exactly what will happen, so it's roughly 20 times.

4 0
3 years ago
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