Answer:
23.21
Step-by-step explanation:
The answer you have given is correct.
Answer:
(8b-8)(-2b2-7b+5)= 96b-40
Answer:
A. 17
Step-by-step explanation:
using the cosine rule (also see attached for reference):
AB² = BC² + AC² - 2·AC·BC cos C
2·AC·BC cos C = BC² + AC² - AB²
Given that AC = 18, AB = 12 and BC = 18, substituting these into the formula
2(18)(28) cos C = 28² + 18² - 12²
1008 cos C = 964
cos C = 964/1008
cos C = 0.9563
C = cos⁻¹ 0.9563
C = 16.99 ( = 17° rounded to nearest degree)
Answer:
2(3-n)=5
Step-by-step explanation:
Answer:
11.25
Step-by-step explanation:
13.79-x
Let x= 2.54
13.79-2.54
11.25