What is the equation of a line, in the general form, with a slope of-2an a y-intercept of 8? 1) x+2y-8=0, 2) 2x+y-8=0, 3) 2x-y+8
2 answers:
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Answer:
<em>Answer: C</em>
Step-by-step explanation:
<u>The Cosine Function</u>
The graph of a cosine function is a sinusoid that starts at its maximum value of 1 at x=0 and takes x=2π radians to complete a full cycle. The function of the parent cosine function is:
Both the amplitude A and the angular frequency w of a cosine can be modeled by the function
The graph of the cosine function shown in the figure has an amplitude of A=3 and it completes a full cycle at x=π/2, thus:
Thus:
Therefore, the equation of the sinusoid is:
Answer: C
Answer:
72 square units
Step-by-step explanation:
The area is given by the formula ...
A = 1/2ab·sin(C)
A = 1/2(12)(24)sin(30°) = 1/2(12)(24)(1/2) = 72 . . . square units
