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Veseljchak [2.6K]
3 years ago
7

The count in a bacteria culture was 400 after 15 minutes and 1400 after 30 minutes. Assuming the count grows exponentially,

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

find the double period

Step-by-step explanation:

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Which polygon has interior angles whose sum is 1440°? octagon nonagon decagon 11-gon
ArbitrLikvidat [17]

Answer:

Decagon

Step-by-step explanation:

We can use the general equation to determine the sum of interior angles:

I.A. = 180 \times (n-2)

Since we know the sum of interior angles (I.A.) is 1440°, we must figure out n - the number of sides and so:

1440=180(n-2)\\\\\frac{1440}{180}=n-2\\\\8=n-2\\\\n=10

Since n=10 this means that it is a 10 sided shape meaning it's a decagon.

5 0
3 years ago
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Four friends go out to eat and their meal costs $86.50. The sales tax is 6.75% and they should tip the waiter 20%. How much shou
GenaCL600 [577]
If the tax is placed on the roigial price, they should each pay around 49 dollars and 3 cents.
8 0
3 years ago
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How do you tell if a number is divisible by 8
eimsori [14]
If the number is a multiple of 8, it is divisible by 8.
The multiples of 8 are: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88... etc.

If a number is very big, let's say 176, see if you can deduct 80 from it. For this, 176 can be deducted by 80 twice, which will give you a remainder of 16 (I.e. 176 - 80 - 80 = 16". If this remainder (i.e. 16) is divisible by 8, 176 is divisible by 8.

For even larger numbers, try deducting 800, or even 8000.

Let's say you're trying to see if 2464 is divisible by 8. In this case, 2464 can be deducted by 800 thrice (I.e. 2464 - 800 - 800 - 800 = 64), and 64 is its remainder. Since 64 is divisible by 8, 2464 is divisible by 8.

Hope this helps! :)
5 0
4 years ago
HELP PLEASE BTW ITS RATIOS!
kipiarov [429]
35:63:28 please reward me brainiest
3 0
3 years ago
CAN SOMEONE PLZ HELP ME!!!​
Darina [25.2K]

Answer:

hope this helps

Step-by-step explanation:

Strawberry = 14

blueberry = 14

cherry = 7

chocolate = 7

apple = 14

3 0
3 years ago
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