Write the following set of equations in matrix form: 50 = 5x3 − 7x2

4x2 + 7x3 + 30 = 0

x1 − 7x3 = 40 − 3x2 + 5x1​

Awell-diversified portfolio needs about 20-25 stocks from different categories is this true or false?

Dean wants a quick way to look up staff members by their staff id. in cell q3, nest the existing vlookup function in an iferror function. if the vlookup function returns an error result, the text “invalid staff id” should be displayed by the formula. (hint: you can test that this formula is working by changing the value in cell q2 to 0, but remember to set the value of cell q2 back to 1036 when the testing is complete.)

When creating a presentation in libre office impress, where does the editing of slides take place?