For this problem, I think there is no need for the details of 12 inches width and 4 inches length. This is because an equation is already given. It was clearly specified that A as a function of θ represents the area of the opening. Then, we are asked to find exactly that: the area of opening. Moreover, the value of θ was also given. Therefore, I am quite sure that the initial details given are for the purpose of red herring only.
So, all we have to do is substitute θ=45° to the function given.
A = 16 sin 45° ⋅ (cos 45° + 1)
The angle 45° is a special angle in trigonometry. So, it would be easy to remember trigonometric functions of this angle. Sine of 45° is equal to √2/2 while cosine of 45° is also √2/2.
A = 16(√2/2) ⋅ (√2/2 + 1)
A = 8+8√2
A = 19.31 square inches
Answer:
523.33 mm³
Step-by-step explanation:
The volume (V) of a sphere is calculated using the formula
V = 
πr³ ← r is the radius = 5, thus
V = π × 5³
= 
≈ 523.33 mm³
6.48 divide by 6 and u will get the answer
Answer:
i think we need more context to this answer. I’d love to help no need to retype. You can just message me for help :)
Step-by-step explanation:
Answer:
98.75
Step-by-step explanation:
25 x 395 = 9875
9875 / 100 = 98.75
hope this helps
