Solve.The sum of the areas of two square plots of land is 2389 m2 and the difference of their areas is 1139 m2. Find a length of a side of each plot.
A. 26 m; 67 m
B. 41 m;,17 m
C. 42 m; 25 m
D. 6.25 m; 42 m
Answer: C
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Solve the problem.A manufacturer uses raw materials to produce p products each day. Suppose that each delivery of a particular material is $d, whereas the storage of that material is x dollars per unit stored per day. (One unit is the amount required to produce one product). How much should be delivered every x days to minimize the average daily cost in the production cycle between deliveries?
What will be an ideal response?
Write the quadratic function in the form y = a(x - h)2 + k.y = x2 + 10x + 18
A. y = (x + 5)2 + 7 B. y = (x + 5)2 - 7 C. y = (x - 5)2 - 7 D. y = (x - 5)2 + 7
Solve the problem.The logistic growth function f(t) = 
models the number of people who have become ill with a particular infection t weeks after its initial outbreak in a particular community. How many people became ill with this infection when the epidemic began?
A. 10,000 people B. 20 people C. 499 people D. 500 people
Find the distance between the pair of points.(2.1, 5.5) and (-6.3, -5.6)Approximate the distance to two decimal places.
A. 4.2 units B. 8.4 units C. 11.87 units D. 13.92 units