Solve the differential equation.


Mathematics

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A medical insurance policy requires Ana to pay the first $100 of her hospital expense. The insurance company will then pay 70% of the remaining expense. Ana is expecting a short surgical stay in the hospital, for which she estimates the total bill to be about $3,900. How much will Ana's portion of the bill amount to?

A. $980 B. $1120 C. $1240 D. $1680 E. $2010

Mathematics

Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find  at the point (-6, -9, -10): f(x, y, z) = xyz - 5y2 - 8z

What will be an ideal response?

Mathematics

The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below. What is the total weight of the minimum spanning tree?

A. 8.2 B. 7.3 C. 10.5 D. 7.7 E. none of these

Mathematics

Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)2.6x -  0.7y + 5.3z - 3.4w = 2.96.5y + 0.7w = -1.84.0z - 2.2w = 1.54.9x + 0.6w = 3.2

A. {(0.5, -0.4, -0.3, -1.3)} B. {(0.5, -0.4, 1.1, 1.3)} C. {(0.5, 0.4, 1.1, -6.3)} D. {(-0.5, -0.4, 1.1, 9.4)}

Mathematics