Matrices c and d shown below are equal. c= [ 4 -3 8 9.2 d d11 d12 d13 d14 1.2 -6 5 1 d21 d22 d23 d24 6 0 -7 23 d31 d32 d33 d34 what is the value of d33? -7 -6 5 8

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

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.