Since they are complementary
x + y = 90
Sin(o) = Cos (90-0)
Therefore, Cos x = Sin y = 4/5 [ Because x and y are complementary]
Answer:
D) 90 inches
Step-by-step explanation:
There are 36 inches in a yard (3 feet)
To find how many inches, multiply the numbers.
2.5 × 36
90 inches
Answer:18/5
Step-by-step explanation:
Answer:
280 years old
Step-by-step explanation:
to determine a dog's age in dog or human years, you divide or multiply by 7
40x7=280 years
No, because with the parentheses, you distribute the 2 to both the x and the 5, making that equation 2x-10
