A pair of sunglasses is on sale 30% off. if the original cost of the sunglasses are $18, what is the sale price now?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

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

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.