Amicroscope has the following objective lenses: 4x, 10x, & 40x. which lens should you start with and why?

answer:

sometimes

*i think

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

i think it is 18

step-by-step explanation:

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.