Now change matrix B to a 3 x 3 matrix and enter these values for B: B = 1.2 1.4 3.1 2.2 1.1 5.6 3.7 4.2 6.7 Then select A • B to calculate the product: 77 39 −33 1.2 1.4 3.1 2.2 1.1 5.6 3.7 4.2 6.7 = c11 c12 c13 c11 = c12 = c13 =

fjfjfhdhdhdhjjdjdjdjdjjd thats the answers

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

step-by-step explanation:

the triangles are similar. therefore the corresponding sides are in proportion:

              cross multiply

            divide both sides by 32