Answer:
8. 8.80
9. 90
Step-by-step explanation:
Question 8: Use the Pythagorean formula
DE² = DF²+EF²
EF² = DE² - DF²
= 16.2² - 13.6²
= 77.48
EF = √77.48 = 8.80 (Answer)
Question 9: Use the Cosine Rule
GI² = GH² +HI² - 2·GH·HI·Cos ∠GHI
= 60² + 42² - 2·60·42·Cos 123
= 3600 +1764 - (-2744.98)
= 8108.98
GI = √8108.98 = 90
Answer:
62.8
Step-by-step explanation:
165/28.8 = 360/x
360 x 28.8 =10,368/165 = 62.8
hope this helps <3
Answer:
16-8=8 I don't know if that's what you wanted but there
Answer:
N
Step-by-step explanation:
Positives are greater than negatives.
