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brilliants [131]
3 years ago
7

Which of the following systems of inequalities has point D as a solution? f(x) = 3x+4

Mathematics
1 answer:
Alex73 [517]3 years ago
8 0

I think is this one
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The volume of one of the Great Lakes is 3.5 × 10^3 cubic kilometers. If there are 6.3 × 10^7 fish in the lake, what is the avera
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________________1,8*10^4
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3 years ago
Suppose a room is 5.2 m long by 4.3m wide and 2.9 m high and has an air conditioner that exchanges air at a rate of 1200 L/min.
Readme [11.4K]

Answer:

54 minutes

Step-by-step explanation:

From the question, we are given;

  • A room with dimensions 5.2 m by 4.3 m by 2.9 m
  • The exchange air rate is 1200 L/min

We are required to determine the time taken to exchange the air in the room;

First we are going to determine the volume of the room;

Volume of the room = length × width × height

                                  = 5.2 m × 4.3 m × 2.9 m

                                  = 64.844 m³

Then we should know, that 1 m³ = 1000 L

Therefore, we can convert the volume of the room into L

= 64.844 m³ × 1000 L

= 64,844 L

But, the rate is 1200 L/min

Thus, time = Volume ÷ rate

                  = 64,844 L ÷ 1200 L/min

                   = 54.0367 minutes

                   = 54 minutes

Therefore, it would take approximately 54 minutes

4 0
3 years ago
I need help with this question
ahrayia [7]

Answer:

l:6   w:9

Step-by-step explanation:

<u>        54        </u>

 1          54

 2         27

 3          18

 6          9

8 0
2 years ago
What is the value of n? 3n + 16 = 7n Enter your answer in the box.
liraira [26]
Subtract 3n and then divide by 4 and you get n= 4
7 0
3 years ago
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PLSSSSS HELP ME, Write a formula for the sum of the first three terms, a1+a2+a3, Your answer should only include variables a1 an
Gwar [14]
S3= 3/2 [2a1+(3-1)d]
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3 years ago
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