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Lemur [1.5K]
3 years ago
6

PLEASE HELP ASAP!! I'LL GIVE YOU BRAINLIEST!!

Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

three

Step-by-step explanation:

the graph has 3 touching points

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An element with mass 490 grams decays by 28.6% per minute. How much of the element is remaining after 16 minutes, to the nearest
agasfer [191]

Answer:

2.2 grams

Step-by-step explanation:

We can use the compound decay formula shown below to solve this:

F=P(1-r)^t

Where

F is the final amount (what we want to find)

P is the present amount (490 grams)

r is the rate of decay, in decimal (28.6% = 28.6/100 = 0.286)

t is the time in minutes (16)

Substituting, we get:

F=P(1-r)^t\\F=490(1-0.286)^{16}\\F=490(0.714)^{16}\\F=2.2355

So, after 16 minutes, 2.2355 grams will be remaining.

<em>Rounded to nearest tenth of a gram (1 decimal place) = </em><em>2.2 grams remaining</em>

5 0
3 years ago
Find all n in N that satisfy (2^n)-1 divisible by 9​
zmey [24]

Answer:

u can use the hit and trial method for this

7 0
3 years ago
I NEED HELPPPPP!!!! PLZZZ
iVinArrow [24]

Answer:

13.5

Step-by-step explanation:

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3 years ago
If a van traveled 175 miles in 5 hours, how far could the van travel in 8 hours?
Fittoniya [83]
280 because if you divide 175 by 5 you get 35 which is the amount of miles the van travels in 1 hour and then you multiple 35 by 8 and you have your answer 280
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B > -21 is i think you answer.
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3 years ago
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