6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(−4) + 30 ÷ 5
6 + 16 + 30 ÷ 5
6 + 16 + 6
22 + 6
28 Explain to Matt and Karen who, if either, is correct, and identify errors that you find. Provide the correct manner to fix those solutions, and identify the correct answer. Use complete sentences.
Karen is correct. (-2)2 is -4, not 4 in Matt's answer. Also, Karens, order of operations on the 4th line is correct. She does her division first, and Matt completes his subtraction first. PEMDAS, parenthesis, exponents, multiplication, division, addition, subtraction.
So in matt's equation, he made a mistake in the a transision from line 2 to line 3 in line 2: -4(-2)2 in line 3: -4(4) the mistake is that -2 times 2 is not equal +4 it is equal to -4 also from lines 5 to 6 he made a mistake in order of opperations (mulit division then addition and subtract) line 5: -10+30/5 line 6: 20/5
so he first subtracted 10 then divided, he should have divided then subtracted so the equation should have equaled
Karen used the correct (-) times (+) property and the order of operations so Karen is correct and Matt is wrong.
Only Statement 2 is surely correct. because there maybe chances that the line L1 and L3 lies above the line L2 and they can also fulfill the condition of perpendicularity so we can't be sure about statement 3 & statement 1 is clearly incorrect
