First-order des: consider the following initial value problem: dy y(0) = 1 (a) sketch the slope field of (1) over the region -2 3 r 3 2,-2 s y s 2. (b) solve the initial value problern (1). [hint: if it ,' re-rdx= (z+1)e-z+c.)

here is your mark brainliest

this answer is !

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.