<h3>
Answer: Choice C</h3>
cos(a - b) = cos(a)cos(b) + sin(a)sin(b)
In this case, we'd have a = 180 and b = q, so,
cos(a-b) = cos(a)cos(b) + sin(a)sin(b)
cos(180 - q) = cos(180)cos(q) + sin(180)sin(q)
cos(180 - q) = -1*cos(q) + 0*sin(q)
cos(180 - q) = -cos(q) + 0
cos(180 - q) = -cos(q)
The value of f(-1) is -11 if the function f(n) = 8n - 3 after plugging the value of n is -1
<h3>What is a function?</h3>
It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
f(n) = 8n - 3
g(n) = 3n - 10
To find the value of f(-1) first plug n = -1 in the function f(n)
f(-1) = 8(-1) - 3
f(-1) = -8 - 3
f(-1) = -11
Thus, the value of f(-1) is -11 if the function f(n) = 8n - 3 after plugging the value of n is -1
Learn more about the function here:
brainly.com/question/5245372
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Answer:
C) 12.2 cm
Step-by-step explanation:
To find the area of a square, you multiply length and width, which for a square, are the same. So to find the length of one of its sides, you have to take the square root of the area.
I think the answer would be rhombus
