The formula
d
=
1.3
t
2
+
t
+
2
expresses a car's distance (in feet to the north of an intersection,
d
, in terms of the number of seconds
t
since the car started to move. as the time
t
since the car started to move increases from
t
=
8
to
t
=
8.2
seconds, what constant speed must a truck travel to cover the same distance as the car over this 0.2-second interval?

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true