Question: How do you solve [3.2 x (6.1 x 6.3)] - 2.8 with PEMDAS? PEMDAS is the order of operations with which you solve an equation. So first parentheses, then exponents, then multiplication, then division, then addition, and last subtraction.
Answer: First, you solve the parentheses in the parentheses: >6.1 x 6.3 = 38.43 Now ur equation is: (3.2 x 38.43) - 2.8 Now you solve what's inside this parentheses: >3.2 x 38.43 = 122.976 Now you do the subtraction, because you have already solved all of what's in the parentheses: >122.976 - 2.8 = 120. 176 And so, your answer is 120.176 This is what your equation should look like when you're solving: >[3.2 x (6.1 x 6.3)] - 2.8 = y >[3.2 x (38.43)] - 2.8 = y >(3.2 x 38.43) - 2.8 = y >122.976 - 2.8 = y >122.976 - 2.8 = 120. 176
Let the width of the rectangle be x Then length =x-4 Area=x(x-4)=140 x²-4x=140 x²-4x-140=0 x²-14x+10x-140=0 x(x-14)+10(x-14)=0 (x-14)(x+10)=0 Therefore,length=14 cm and width=10 cm
