Marta hopes to have a test average of at least 90 by the end of the marking period. her grades on the first four tests have been 86, 84, 97 and 89. what is the lowest grade she can receive on her fifth and final test and still have a test average of 90 or higher?

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

What is sin 7x/4 ? i need on this urgent trig