cluis811
08.03.2020 •
Mathematics
What is the length of the missing side AB?
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Ответ:
72.6 cm
Step-by-step explanation:
Since we know the two sides and one angle, we would apply the law of Cosines which is expressed as
a² = b² + c² - 2abCosA
Where a,b and c are the length of each side of the triangle and C is the angle corresponding to AB.
AB² = 38² + 83² - 2(38 × 83)Cos61
AB² = 1444 + 6889 - 2(3154)0.4848
AB² = 8333 - 3058.1184
AB² = 5274.8816
Taking square root of both sides, it becomes
AB = √5274.8816
AB = 72.6 rounded up to the nearest tenth
Ответ:
Buying five of each type of plant costs 39, which is the lowest possible cost
Step-by-step explanation:
Linear programming is a method used to maximize or minimize a linear function of several variables like output or cost.
Given vertex is (5,39).
A botanist uses linear programming to find the vertex of the feasible region that results in the minimum value, in dollars, of the cost function.
Here, vertex (5,39) means that Buying five of each type of plant costs $39, which is the lowest possible cost.