If one serving is 1/2 a pound and the recipe uses 3/4, then the recipe must be multiplied by 1 1/3 to make 1 pound of chicken - 2 servings
Answer:
The value of cos Ф is ±
Step-by-step explanation:
There are important rules for sin Ф and cos Ф
∵ sin Ф =
∴ sin²Ф =
∴ sin²Ф =
→ By using the third rule above
∵ cos²Ф = 1 - sin²Ф
∴ cos²Ф = 1 -
∴ cos²Ф =
→ Take square root for both sides
∴ cos Ф = ±
∴ The value of cos Ф is ±
The perimeter of a rectangle is given by
We know that the width is 36, and the perimeter must be less than 200, so we have
Divide both sides by 2:
Subtract 36 from both sides:
The height must be less than 64.
The answer with Be B good choice