The half-angle formula for cosine is
To find cos(3π/8), we can use this formula with θ=3π/4. Cos(3π/4) = -(√2)/2, so we have
To find cos(3π/8), we can use this formula with θ=3π/4. Cos(3π/4) = -(√2)/2, so we have
There are 3,600 seats in an arena. Tier 1 has 1,200 seats. Tier 2 has 1,400 seats. Tier 3 has 1,000 seats. What fraction of the
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Given:
The graph of an inequality.
To find:
The inequality in slope intercept form.
Solution:
The slope intercept form is:
Where, m is slope and b is y-intercept.
From the given graph it is clear that the boundary line passes through the points (-3,0) and (0,-3).
From the given graph it is clear that the boundary line is a solid line and the shaded region lies above the line, so the sign of inequality must be "≥".
Therefore, the required inequality is .