Find the difference in elevation between the given highest and lowest points.

South America: Mt. Aconcagua, 6,960 meters, and Valdes Peninsula, -40 meters.
A) 7,000 meters
B) 6,990 meters
C) 6,980 meters
D) 7,030 meters
E) 7,040 meters


A) 7,000 meters

Mathematics

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Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = ex+y

A. Domain: all points in the xy-plane; range: all real numbers; level curves: lines x + y = c B. Domain: all points in the xy-plane; range: real numbers z > 0; level curves: lines x + y = c C. Domain: all points in the first quadrant of the xy-plane; range: all real numbers; level curves: lines x + y = c D. Domain: all points in the first quadrant of the xy-plane; range: real numbers z > 0; level curves: lines x + y = c

Mathematics

Convert to an exponential equation.log6 1 = 0

A. 06 = 1 B. 10 = 6 C. 60 = 1 D. 61 = 0

Mathematics

Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $620 to set up for production, and variable costs of $28 per jacket. Write an equation that can be used to determine the total cost, C, encountered by Marty's Company in producing x jackets, and use the equation to find the total cost of producing 104 jackets.

A. $3512 B. $3532 C. $3544 D. $3524

Mathematics

Find the cofactor of the indicated element of the matrix shown.a22;

A. -5 B. -7 C. 5 D. 7

Mathematics