If `f(x)=sqrt(7x+2)`, which expression represents f^-1(x)? (Here: `x>=-(2)/(7)`) A. ` 1/(sqrt(7x+2)) `
B. ` (x^2+2)/7 `
C. ` (y^2-2)/7 `
D. ` (x^2-2)/7 `

Help!

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319