Perform the indicated operations and simplify. 

A.
B.
C.
D.
E.


Answer: A

Mathematics

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A cohort of fish is a group of fish of the same age. For a certain fish in the North Sea, the total biomass B, in pounds, of a cohort of age years is given by

. ? A: Make a graph of B versus for fish up to 30 years old.B: Fishing of a cohort is allowed if the biomass of that cohort is at least 2,000 pounds.  Add the graph of  to the graph you made in part A.C: What age cohorts are allowed to be fished? Round your answer to two decimal places. What will be an ideal response?

Mathematics

Find the quantity indicated.b varies directly as a. Find k when a = 72 and b = 6.

A. k = 13
B. k = 12
C. k = 
D. k = 66

Mathematics

Solve the inequality.x2 + 6x ? -8

A. -4 ? x ? -2 B. 2 ? x ? 4 C. 2 < x < 4 D. x ? 2 or x ? 4

Mathematics

Combine like terms in the expression. Answer "not possible" if terms cannot be combined.3x + 12x

A. 30x B. 36x C. 15x2 D. 15x

Mathematics