1. divide 36/-4= 9 is this correct?
2. evaluate the expression |-5 +3|= -2 is this correct?
3. evaluate the expression ( -6) power of 2 - (16/2) = -2.5 - 8 = 10.5 is this correct?
4. Evalute the expression 45/ 5 X 3 power of 2= 9x9= 81 is this correct?
5. evaluate the expression -72/-9 = -8
1. No. Sign should be negative.
2. No . abs(-2)=2
3. No. (-6)^2=36
4. correct
5. No, sign is +
1. To divide 36 by -4, you need to follow the standard order of operations, which is PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right). In this case, there are no parentheses, exponents, or multiplication, so you can directly perform the division operation.
36 divided by -4 equals -9, not 9. Therefore, the statement "divide 36/-4 = 9" is incorrect.
2. To evaluate the expression |-5 + 3|, you need to start by simplifying the expression within the absolute value brackets, which is -5 + 3.
-5 + 3 gives you -2. Then, take the absolute value of -2, which is 2.
Therefore, the correct evaluation of the expression |-5 + 3| is 2, not -2.
3. To evaluate the expression (-6) power of 2 - (16/2) = -2.5 - 8, you again need to follow the order of operations.
First, calculate the values in the parentheses: (-6) power of 2 gives you 36, and (16/2) equals 8. Next, perform the subtraction operation.
36 - 8 is equal to 28, not -2.5 - 8.
Therefore, the statement "(-6) power of 2 - (16/2) = -2.5 - 8 = 10.5" is incorrect.
4. To evaluate the expression 45 / 5 × 3 power of 2, you need to follow the order of operations.
First, perform the exponentiation operation: 3 power of 2 equals 9. Then, perform the division: 45 divided by 5 equals 9. Finally, perform the multiplication: 9 multiplied by 9 equals 81.
Therefore, the correct evaluation of the expression 45 / 5 × 3 power of 2 is 81, as you correctly stated.
5. To evaluate the expression -72 / -9, you simply need to perform the division.
-72 divided by -9 is equal to positive 8.
Therefore, the correct evaluation of the expression -72 / -9 is 8.