An equation of a function y(t) is shown. y(t)=−t²+14t−40 which of the following statements are true about the graph of y(t) for 6≤t≤8 and why? a. the value of y(t) increases over the interval 6≤t≤7 b. the value of y(t) increases over the interval 7≤t≤8 c. the average rate of change over the interval 6≤t≤8 is 0 d. the value of y(t) is constant over the interval 6≤t≤8 e. the average rate of changer over the interval 6≤t≤7 is the same as the average rate of change over the interval 7≤t≤8

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

If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?

Indicate whether each statement is true or false, assuming that the "or" in the sentence means the inclusive or. then indicate whether the statement is true or false if the "or" means the exclusive or. (a) february has 31 days or the number 5 is an integer. (b) the number pi is an integer or the sun revolves around the earth. (c) 20 nickels are worth one dollar or whales are mammals. (d) there are eight days in a week or there are seven days in a week. (e) january has exactly 31 days or april has exactly 30 days.