Step-by-step explanation:
a = 5
b= 9
a + 4b = ?
5 + 4×9 =
5 + 36 = 41
The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Answer:
the answer is 13
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
2x+3y where it is 2,2 become 4 plus 6 which is 10
Answer:
(9 ^ 3) x 0.04 (4/99)
Step-by-step explanation:
This seems overwhelming, but after simplifying, it will look much easier
Numerator (First Row)
First, we will combine like terms and simplify the top row
(9 ^ <em>x</em> + 1) x 8 - (9 ^ <em>x</em> - 1) x 81
(9 ^ <em>x</em> + 1) - (9 ^ <em>x</em> - 1) x (8 x 81)
(9 ^ 2x) x 648
Denominator (Second Row)
Next, we can combine like terms and simplify the second row
(9 ^ <em>x</em>) x 66 - (9 ^ <em>x</em> - 2) x 243
(9 ^ <em>x</em>) - (9 ^ <em>x</em> - 2) x (66 x 243)
(9 ^ 2x + 2) x 16,038
Simplify
Our expression is now
(9 ^ 2x) x 648
(9 ^ 2x + 2) x 16,038
We can simplify it as
(9 ^ 3) x 0.04 (4/99)
