Anna says Because I stopped for drinks, my average running speed was faster than 6 kilometres per hour. Give one reason to support Anna’s statement.

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

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