Bob’s wife is in her third trimester of pregnancy. Bob’s is/are likely to affect the health of his unborn baby.

the area between the graph and the t axis

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

technology is the application of the knowledge gained by science.