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Keith_Richards [23]
3 years ago
5

Pls help me with this

Mathematics
1 answer:
erastova [34]3 years ago
7 0
The mean number is -48(:
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PLEASEEE HELP BIG FINALS TEST !!!! :( plssssss
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I’m pretty sure I know the answers but could you tell me the options for the drop boxes:)
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2 years ago
What is the midpoint of the segment (-2,4) and (6,-4)
liberstina [14]
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3 0
2 years ago
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It is estimated that world reserves of oil currently stand at 2625
seraphim [82]

Answer:

  35.4 years

Step-by-step explanation:

The annual consumption (in billions of units) is described by the exponential function ...

  f(t) = 45.5·1.026^t

The accumulated consumption is described by the integral ...

  \displaystyle\int_0^t{f(x)}\,dx=45.5\int_0^t{1.026^x}\,dx=45.5\left(\dfrac{1.026^t-1}{\ln{1.026}}\right)

We want to find t such that the value of this integral is 2625, the estimated oil reserves.

  2625 = 45.5/ln(1.026)·(1.026^t -1)

  2625·ln(1.026)/45.5 +1 = 1.026^t ≈ 1.480832 +1 = 1.026^t

Taking natural logs, we have ...

  ln(2.480832) = t·ln(1.026)

  t ≈ ln(2.480832)/ln(1.026) ≈ 35.398

After about 35.4 years, the oil reserves will run out.

4 0
2 years ago
There were two cheesecakes in the fridge. The first cheesecake was cut into 16 slices and there are 3 slices left. The other che
Elina [12.6K]

Answer:

31/80

Step-by-step explanation:

2/10 + 3/16

5 0
2 years ago
I need health drink is 130% of the recommended daily allowance RDA for a certain vitamin the RDA for this vitamin is 45 MG. How
Lerok [7]

Answer:

58.5mg of the vitamin in a drink

Step-by-step explanation:

We know...

130% of RDA for vitamin x >> RDA for vitamin x = 45mg >> 130% of 45 = ?? mg in a drink.

1. 130% = \frac{130}{100} = 1.3

2. 130% of 45 >> 1.3(45)=58.5

I hope this helps you?!

3 0
3 years ago
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