Answer:
10 cos x +8sqrt2 = 8cos x +7 sqrt2 collect like times together to have
10cosx-8cosx = 8√2 - 7√2 then solve to have
2cosx = √2 divide by two in both sides
cosx=√2/2 but 2= √2 *√2
so cosx= √2/(√2 * √2) so cos x =1/√2 but we know that cos inverse of 1/√2= 45 thus cos 45 = 1/√2 thus x = 45
Answer:
The answer to this is 127.8
Step-by-step explanation:
Perimeter is the outside of a shape so adding them all up would equal to 127.8
adjacent and supplementary
(Please mark me brainliest! thank you in advance!!)
Answer:
21.50
Step-by-step explanation:
Let C = cost before markup
1.25 C = 26.88
C = 26.88/1.25 = 21.50
Answer:
9 • sqrt(15)
Step-by-step explanation:
