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vovangra [49]
2 years ago
7

each hour the number of bacteria in dr. nall's petri dish tripled what percent is the population compared to the population the

hour before
Mathematics
1 answer:
yan [13]2 years ago
3 0
The starting percent is 100%. After one hour, bacteria tripled, so it is 300%.
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Please help i dont understand
Rama09 [41]

Answer:

17.5

Step-by-step explanation:

Pythagorean Theorem is a^2 + b^2 =c^2

a= 9 , b= 15, c= x

9^2 + 15^2 = c^2

\sqrt{306}= c^2

c= 17.493 or 17.5 rounded to the nearest tenth

4 0
2 years ago
Write a number in which the digit 3 is ten times the value of the digit 3 in 9.431
IgorC [24]

Answer:

Step-by-step explanation:

One number would be

9.31

The 3 in this number is 3/10

The 3 in the given number is 3/100

3/10 is 10 times bigger than 3/100

3/10 = 0.3

3/100 = 0.03

0.03 * x = 0.3                   Divide both sides by 0.03

0.03/0.03 x = 0.3/0.03

x = 10

6 0
2 years ago
Find the sum 1/b^2c +b/c^2
inysia [295]
Hey! here is the answer
<u>b³+c
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8 0
3 years ago
What is 500 - 200. please answer.
Assoli18 [71]

Answer:

300

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Triangle A B C is shown. The length of A B is 12, the length of B C is 24, and the length of C A is 12 StartRoot 3 EndRoot
jeka57 [31]

Answer: The answer is B.

Step-by-step explanation:

First of all, if you just look at the angles, you can already tell that angle A is the right angle, in which you can then cross out A and C. Now you are down to B or D. This was tough but if you remember that the longer leg is square root of 3 times the shorter leg then you can tell that the included angle between the side showing 12 and the side showing 24 is the 60 degree angle. This leaves you to tell that the other angle is 30 degrees.

I hope this helps ;)

8 0
2 years ago
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