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Inessa [10]
4 years ago
14

In a lab a substance was cooled by 42C over a 7 hours at a constant rate. What was the change in temperature each hour?

Mathematics
1 answer:
Svetlanka [38]4 years ago
4 0

The rate of change is -6c per hour.

42c/7=6.

I believe the rate of change is negative because the question states that the temperature is decreasing.

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If the solutions of a quadratic equation are x = 7 and x = -5 write the possible trinomial these solutions could have derived fr
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X^2-2x-35
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A trucker drives at 62mph for three and a half hours how far does he travel
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217miles is how far he travels

Step-by-step explanation:

I did 62mph * 3 1/2 and got 217.

I'm unsure if this is correct but I tried my best in solving this!

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Aaron bought a set of plastic ice cubes with a mixture of water and air inside.
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The volume of water and air inside each of the plastic ice cubes is 3000mm³

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5 0
3 years ago
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Determined be whether the solution to 32=6(1)-4​
igomit [66]

Answer:

false

Step-by-step explanation:

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Now let's subtract.

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This statement is incorrect; therefore it is not true.

8 0
3 years ago
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Zina [86]

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  84? Not sure but pretty sure

Step-by-step explanation:

In a straight line, the word can only be spelled on the diagonals, and there are only two diagonals in each direction that have 2 O's.

If 90° and reflex turns are allowed, then the number substantially increases.

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Middle R can go the three O's on the adjacent row, so can access the three paths available from each corner O along with the 10 paths available from the center O, for a total of 16 paths.

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3 years ago
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