Answer:
42/50, 21/25
Step-by-step explanation:
84/100=42/50=21/25
Answer:
a≈18 cm
Step-by-step explanation:
we have given:
an angle,
the adjacent side and
we need to find:
the opposite side
we know that the definition of
tan of an angle = opp. side/ adj. side
tan 61° = a/ 10
multiply both sides by 10
10 * tan61° = a
18.04047755 = a
18 ≈ a
Answer:
the answer is b give me brainliest
Step-by-step explanation:
Answer: $12,723.45
Step-by-step explanation:
Details of each play area :
The radius of circle = 18 feet long
Cost of fake grass per square foot = $12.50
Therefore,
We can obtain the Area of the play area by calculating the area of the circle:
Area of a circle = πr^2
Area = π × 18^2
Area = 1,017.876ft^2
Since the cost per square foot is $12.50
Therefore, Cost of 1,017.876 ft^2 equals
Cost per square foot × Area of play area
($12.50 × 1,017.876)
= $12,723.45
Answer:
4, 12, 8, 10
Step-by-step explanation:
Ratio:
Hydrogen : Oxygen
2:1
1) 8/2 = 4 Oxygen atoms
2) 6*2 = 12 Hydrogen atoms
3) 16/2 = 8 Oxygen atoms
4) 20/2 = 10 Oxygen atoms
