Answer:
equation L x D
they built 114 miles onto the road and the full length is 172 miles.
Answer:
the answer is 7.1 inches tall
Answer:
B)41.2
C)0.736
D)6.132
Step-by-step explanation:
B) 412/10=41.2
C)73.6/100=0.736
D)6132/1000=6.132
hope this helps
Answer:
cosA = √(21/25)
Step-by-step explanation:
We know
sin²(A) + cos²(A) = 1
Next, we know that sin(A) = 2/5. Plugging that into our equation, we get
(2/5)² + cos²A = 1
4/25 + cos²A = 1
subtract 4/25 from both sides to isolate cos²A
cos²A = 1 - 4/25 = 25/25-4/25 = 21/25
square root both sides to get
cosA = √(21/25)
We do not include -√(21/25) in our possible answer for cosA because this is in quadrant 1, so cosA must be positive.
