The following information are given. Correlation between x and y= 0.979 mean of the values of x= 40.35 grams mean of the values of y= 662.88 calories standard deviation of the values of x= 27.99 grams standard deviation of the values of y= 324.90 calories The intercept of the least-squares regression line is:

The intercept of the least squares regression line is: 662.83

Step-by-step explanation:

An image solution is attached for explanation.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4