Secθ = cos^(-1)θ is the same as secθ = 1/cosθ
<span>Secant is a trigonometric function, reciprocal to the cosine. </span>
<span>People get confused because they tend to link "cosine" and "cosecant" (which is reciprocal to the sine)</span>
Y= 15x + 100
Y: Leonard's total earnings
X: days worked
Answer:
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Step-by-step explanation:
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Answer:
31 vacuums
Step-by-step explanation:
1800 = 250 + 50v
1800 - 250 = 50v
50v = 1550
v = 1550 / 50
v = 31
He sold 31 vacuums.
Bob charges $140
Andy charges $135
Andy is cheaper
