672 cm³
Step-by-step explanation:
10x7x9=630
2x3x7=42
630+42=672
4. -5
5. -3
7. 17
8. 5
9. -101
10. 0
11. 16
Everything else you did is correct
Hope this helps ya
Answer:
z = -4
Step-by-step explanation:
-5/2 = 3z/4 + 1/2
-10 = 3z + 2
-10 - 3z = 2
-3z = 12
12/-3 = -4
z = -4
<span>Complementary angles sum up to 90 degrees and supplementary angles sum up to 180 (I remember that because they are alphabetical).
90 - 71.4 = 18.6
180 - 71.4 = 108.6
Therefore, D. is the answer.</span>
