Consider the following initial-value problem. y' + 3y = f(t), y(0) = 0, where f(t) = t, 0 ≤ t < 1 0, t ≥ 1 Write the function f(t) in terms of unit step functions. Find the Laplace transform of the given function.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees