Please Help! Geometry!

Step-by-step explanation:

m<C = 90°

According to the laws of cosine,

c²= a²+b²-2ab. cos(C)

c²=a²+b²-2ab.cos(90°)

c²=a²+b²-2ab.0 { cos(90°)= 0}

c²=a²+b²

a²=c²-b²

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

where r the answers

step-by-step explanation: