Variance 0.7775 Find the standard deviation (hint: the standard deviation is the square root of the variance)

What is the area of the trapezoid shown ?

How are sas and sss used to show that two triangles are congruent?

The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?