Which of the following shows the polynomial below written in descending order?

3x3 + 9x7 - x + 4x12

a. 3x3 + 4x12 + 9x7 - x
b. 9x7 + 4x12 + 3x3 - x
c. 4x12 + 3x3 - x + 9x7
d. 4x12 + 9x7 + 3x3 - x

To write the polynomial in descending order, arrange the terms from the highest to the lowest degree. Simply base on the exponents of the variable x. You have 3, 12, 1 and 7. In descending order, that would be: 12, 7, 3 and then 1. The answer is D.

P value = 0.1575

Step-by-step explanation:

Data provided in the question

t = 1.021

n = 33

= 98.6° F

Based on the above information, the P-value could be determined by using the excel spreadsheet i.e. shown in the attachment

So, the P value is 0.1575

The 1.021 denotes the test statistic

32 denotes degrees of freedom

And,

1 denotes one tailed alternative hypothesis.