Using matrix method solve the following simultaneous equations

4x + 2y = 2

5x + 7y = -2

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%