What is (0.54)⋅(3.8)=

2.052

Step-by-step explanation: I used a calculator or you could work it out by multiplying with the number 3.8 on top and 0.54 on bottom. Either way you will still get 2.052 Hope this helps ^-^.

9

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.