1) prove that the circumcenter of an equilateral triangle is the same as its centroid i) calculate the length of the side of an equilateral triangle with vertices on a circle of diameter 1cm ii) calculate the perimeter of such a triangle please, guys, help with this please with an easy answer thanking you in advance

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

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