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tino4ka555 [31]
3 years ago
7

A tram moved upward 9 meters per second for 36 seconds. What was the total change in the tram's elevation?

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0
I can’t play so like u have to divide then subtract then minus it to get ur answer it’s not u it’s the way it’s solved
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Answer:

x = 62

Step-by-step explanation:

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Find two positive real numbers whose product is a maximum. (enter your answers as a comma-separated list.) the sum of the first
Vladimir [108]
<span>the sum of the first and three times the second is 54.

x + 3y = 54 

3y = 54 - x 

y=  54 /3  -  x  /  3  = 18 -x /3

</span>xy = x  (18 -x /3) =  18x   -  x^2  / 3  =  - 1/3 x ^ 2  + 18 x 
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</span><span>since a<0, it is concave downward, and the vertex is the maximum value. That vertex occurs at x= - b /2a = (-18) / (-2/3) = 12
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<span>The first number is x=12.
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5 0
3 years ago
How many 2-letter combinations can be created from the distinct letters in the word "mathematician"? Assume that the
Rzqust [24]

Answer:

Option A.

Step-by-step explanation:

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Number of distinct letters = 8

We need to select 2 distinct letters from word "mathematician".

It means we need to select 2 letters from 8 distinct letters.

Total ways =^8C_2

=\dfrac{8!}{2!(8-2)!}

=\dfrac{8\times 7\times 6!}{2\times 6!}

=28

Therefore, the correct option is A.

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