The angle θ(1) is located in quadrant I, and sin(θ1)= 17/20. what is the value of cos(θ1)

sqrt(111)/20

Step-by-step explanation:

cos²(theta) = 1 - sin²(theta)

= 1 - (17/20)²

cos²(theta) = 111/400

Since it's in the first quadrant, take the positive root

cos(theta) = sqrt(111)/20

sqrt: square root

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 .