Answer:
m(x) = 20000(0.97)^x
Step-by-step explanation:
Given that :
Initial population, population in 1990, P = 20,000
Rate, r = 3% = 0.03
Number of visitors to the museum x years after 1990
Since population decreases, Decay formula
m(x) = Initial population * (1 - r)^x
m(x) = 20000(1 - 0.03)^x
m(x) = 20000(0.97)^x
Answer:



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Step-by-step explanation:
<u>Triangle Solving</u>
If we had a triangle will its three sides of known length, we can solve for the rest of the parameters of the triangle, i.e. the area, perimeter and internal angles.
The three circles have diameters 900 m, 700 m and 600 m and are tangent to each other externally. The distances from their centers (where houses are located) are the sum of each pair of the radius of the circles. Thus, the sides of the triangle are



The internal angles can be computed by using the cosine's law



Where \alpha, \beta and \gamma are the opposite angles to x, y and z respectively. Solving for each one of them:




Similarly




The other angle is computed now




The area can be found by



Answer:
congruent and perpendicular
Answer:
its -9
Step-by-step explanation: