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PolarNik [594]
3 years ago
13

The density d kg/m3 of a cube of mass m kilograms and side length x meters is given by the formula:  What is the value of d if

m = 40 and x = 0.2?​
Mathematics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:

5000kg/m3

Step-by-step explanation:

Its easy to get the answer of a question from the unit.

So, it will be mass over metre cube.

Therefore, m=40kg x= (0. 2)^3 =0. 008m

40/0. 008 = 5000kg/m^3

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motikmotik

Answer:d

Step-by-step explanation:

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3 years ago
For his long distance phone service, Ahmad pays a $3 monthly fee plus 11 cents per minute. Last month, Ahmad's long distance bil
Alenkinab [10]

Answer:

198 minutes (3 hours and 18 minutes)

Step-by-step explanation:

24.78 - 3 = 21.78

21.78 ÷ 0.11 = 198

Hope this helped!

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3 0
3 years ago
The level of CO2 emissions, f(x), in metric tons, from the town of Fairfax x years after they started recording is shown in the
Temka [501]
1) The average increase in the level of CO2 emissions per year from years 2 to 4 is:
Average=[f(4)-f(2)]/(4-2)=(29,172.15-26,460)/2=2,712.15/2=1,356.075 metric tons. The first is false.

2) The average increase in the level of CO2 emissions per year from years 6 to 8 is:
Average=[f(8)-f(6)]/(8-6)=(35,458.93-32,162.29)/2=3,296.64/2=1,648.32 metric tons. The second is false.

3) The average increase in the level of CO2 emissions per year from years 4 to 6 is:
Average=[f(6)-f(4)]/(6-4)=(32,162.29-29,172.15)/2=2,990.14/2=1,495.07 metric tons. The third is false.

4) The average increase in the level of CO2 emissions per year from years 8 to 10 is:
Average=[f(10)-f(8)]/(10-8)=(39,093.47-35,458.93)/2=3,634.54/2=1,817.27 metric tons. The fourth is true.

Answer: Fourth option: The average increase in the level of CO2 emissions per year from years 8 to 10 is 1,817.27 metric tons.
7 0
3 years ago
Mark has a board that is 12 feet long.He cuts the board into 8 pieces that are the same length.Hiw long is each piece?
jonny [76]

Answer:

1.5

Step-by-step explanation:

12/8=1.5

3 0
3 years ago
—7m&lt;28 solve please hurry
mario62 [17]

Answer:

the answer is -4

Step-by-step explanation:

step 1: -7m<28

step 2: -7m÷ (-7)>28÷(-7)

step 3: m>28÷(-7)

step 4: m>-28÷7

step 5: m>-4

8 0
3 years ago
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