Which of the following shows the polynomial below written in descending order? 5x3 – x + 9x7 + 4 + 3x11

Step-by-step explanation:

To write a polynomial in descending order, we arrange the terms by their exponents.

The largest exponent we have is 11; this makes the first term in the order .

The next largest exponent we have is 7; this makes the second term in the order 9x⁷.

The next largest exponent we have is 3; this makes the third term in the order 5x³.

The next largest exponent we have is 1; this makes the fourth term in the order -x¹, which is the same as -x.

The last term will be 4.

This makes the order 3x¹¹ + 9x⁷ + 5x³ - x + 4

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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step-by-step explanation:

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