The value  of an investment of $18,000 after t years in an account for which the interest rate r is compounded continuously is given by the function  dollars. Write the partial derivative

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A.
B.
C.
D.
E.

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Answer: A

Mathematics

Find VL when VOC = 15 V, IL = 1.2 mA and RTH = 2.5 Kê.

VOC - VL RTH = ÄÄÄÄÄÄÄÄ. IL a. 8 V b. 12 V c. 14 V d. 15 V e. 18 V

Write the word name for the number.Repeating patterns in numbers like 400,040,004,000 held mystical significance for most of the members of the village.

A. Four hundred million, forty thousand, four B. Four hundred billion, forty million, four thousand C. Four billion, four hundred million, forty thousand D. Forty billion, four hundred million, four

A building in the shape of a rectangular box is to have a volume of 6,000ft3 (see the figure). It is estimated that the annual heating and cooling costs will be $2/square foot for the top, $3/square foot for the front and back, and $2/square foot for the sides. Find the dimensions of the building that will result in a minimal annual heating and cooling cost. What is the minimal annual heating and cooling cost(C)? ?  ? 

A. x = 30; y = 20; z = 10; C = 3,500 B. x = 20; y = 30; z = 30; C = 3,500 C. x = 30; y = 20; z = 20; C = 3,600 D. x = 20; y = 30; z = 10; C = 3,600

Find the area and perimeter of the rectangle.The width W is one-third the length. Express the area and perimeter in terms of the width W.

A. A = 3W2, P = 6W B. A = 4W2, P = 6W C. A = 3W2, P = 8W D. A = 4W2, P = 8W