Asked by Angie

In ABC, angle C is a right angle. AC=15 and BC=13. Find the measure of angle B. Round answer to nearest tenth.
I need to know what you're supposed to enter in a graphing calculator to get this.
Answered by drwls
A = arctan 13/15 = 40.9 degrees
Answered by bobpursley
There also can be used the law of sines...

c/Sin90=AC/sinB

sinB= AC/(sqrt(AC^2+BC^2)

and B= arc sin ( )

I am not certain what the purpose of your assignment is.
Answered by Anonymous
if a store had sales of $72,597 and handled 750 transactions, what was the average sale? round to the nearest penny
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