If the following system of equations was written as a matrix equation in the form AX=C, and matrix A was expressed in the form

A=[acbd]

find the value of a-b+c+d

4x + 2y=7

5x-6y=9

5[3 (x+4) - 2 (1-x) ]-x-15=14x+45

Analyze Leon's work. Check all that apply. A. Leon should have subtracted inside the parentheses before he multiplied. B. The expression inside the parentheses should be simplified to - 26 instead of - 38. C.

Which of the following sets could not be the lengths of the sides of a triangle. {11,14, 25} {5, 6, 10} {4, 4, 5} {1, 2, 2}

A track and field playing area is in the shape of a rectangle with semicircles at each end. The perimeter of the track is to be 1200 meters.

Data displayed in rows and columns is called a table.

34times1.22subtrace0.89

Find the quotient for 19,386 divided by 23

X plus y = 0 x - y plus 2 = 0

You work at a bridal shop. You need to find out how much satin you will need to make four bridesmaids' dresses and two flower girls' dresses. Each bridesmaid's dress requires 4.5 yards of satin, and each flower girls dresses requires 3.

A necklace is valued at £1200 It's value is expected to increase by 4.5% per year over the next 3 years. Calculate the expected value of the necklace after this time