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anastassius [24]
3 years ago
12

Omg please help for brainlist !!!!!!!!!!!!!!!

Mathematics
2 answers:
LiRa [457]3 years ago
5 0

Answer:

1a

Step-by-step explanation:

8000*0.25=2000

2000*0.25=500

500*0.25=125

...

Alja [10]3 years ago
4 0

A, or f(x) = 8,000(1/4)^x

8,000 is our starting number since number of half lives is our x, and at x = 0, remaining amount of substance is equal to 8,000. As we can see on the graph, the number decreases by a quarter of its original value every time. Since the number is not getting bigger, we use a fraction instead of a whole number. Finally, the exponent makes sure that it’s a quarter of the product from before.

Hope this helps!

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Out of 460 students, 60% have pets. How many of the students have pets?
Margaret [11]
In order to find the number, we will need to set it up in an equation. In total, there are 460 students while 60% of them have pets. Lets set that up.
460(60%)
In order to correctly do this, we will need to transfer 60% into a decimal, which is .6. Now we will rewrite it.
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This now can be represented by the number 276.Since we know that 276 is 60% of 460, The total number of students that have pets will be 276.
3 0
4 years ago
Can someone please help me with this. whoever answers first will be the brainleyist
pav-90 [236]

Answer:

Step-by-step explanation:

6(5+x) = 30 + 6x

1. Distribute the 6 to both the 5 and the x.

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1. Just multiply them together.

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1. PEMDAS

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3 years ago
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Vlada [557]

Answer:

B

Step-by-step explanation:

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Expanding this,

the coefficient of the term x^7y is 8

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Step-by-step explanation:

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