So the trick I was taught to use was PEMDAS which stands for Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction. You solve the parenthesis first, followed by exponents if there are any. Multiplication and division are equal. So if there's multiplication and division in the problem, you solve the one closest to the left or start of the equation first. The same rules apply for addition and subtraction. They are both equal so you solve the first one first, even if the subtraction is before the addition.
Answer:
∠1 ≅ ∠4 because yeah
Step-by-step explanation:
Answer:
49
Step-by-step explanation:
-7² = -7 × -7 = <u>4</u><u>9</u>
So, -7² = 49
<em>Hope it helps and is useful</em><em> </em><em>:</em><em>)</em>
She can use 2x5 because that is the commutative property. commutative property of multiplication states that two numbers can be multiplied in either order, for example, 3x15 can also be multiplied in this way: 15x3. they will both make the same answer: 45
