In considering medical insurance for a certain operation, let x be the amount (in $) paid for the doctor and let y be the amount (in $) paid to the hospital. in the past, the variances have been var(x) = 8,100,var(y) = 10,000, and var(x+y) = 20,000. due to increased expenses, it was decided to increase the doctor’s fee by $500 and increase the hospital charge y by 8%. calculate the variance of the new total claim, i. e. the variance of x + 500 + 1.08y

Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?