Find all real numbers that satisfy the equation. Round approximate answers to 2 decimal places.3 = 5 cos(x) + 2

A. 0.98 + 2k? or 5.30 + 2k? where k is any integer
B. 1.37 + k? or 4.91 + k? where k is any integer
C. 1.37 + 2k? or 7.65 + 2k? where k is any integer
D. 1.37 + 2k? or 4.91 + 2k? where k is any integer


Answer: D

Mathematics

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Use the quadratic formula to solve the equation.x2 + 10x + 41 = 0

A. -9, -1 B. -5 - 16i, -5 + 16i C. -5 - 4i, -5 + 4i D. -5 + 4i

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Convert.0.05 kilometers =    millimeters

A. 50 B. 500,000 C. 50,000 D. 5000

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Major Magic Corporation deposits $1,500 at the end of each month into an account paying 19% interest compounded monthly. What is the value of the account at the end of years? ?

A. $282,744.37 B. $282,731.34 C. $282,757.40 D. $337,533.26 E. $320,145.67

Mathematics

Solve the problem.Le Boulangerie, a bakery, sells four main items: sweet rolls, bread, cakes, and pies. The amount of each ingredient (in cups, except for eggs) required for these items is given by matrix A.  Eggs Flour Sugar Shortening Milk

 = A
The cost (in cents) for each ingredient when purchased in large lots or small lots is given in matrix B. cost
 Large Lot  Small Lot
 = B
Suppose a day's orders consist of 20 dozen sweet rolls, 200 loaves of bread, 50 cakes, and 60 pies. Use matrix multiplication to find a matrix giving the costs under the two purchase options to fill the day's orders.

A.
B. These matrices cannot be multiplied.
C.
D.

Mathematics