Answer:
36 days
Step-by-step explanation:
Just a guess but the LCM of 9 and 12 is 36
The goal is to list the multiples of both 12 and 9 to determine when they first coincide:
(a) 12, 24, 36, 48, 60, 72, 84, 96
(b) 9, 18, 27, 36, 45, 54, 63, 72, 81
The first multiple both numbers have in common is 36. Therefore, it will be 36 days before tacos and chicken are both on the menu again.
B, i might be wrong but i think its B
Use the difference of 2 squares (a - b)(a + b) = a^2 - b^2:-
(x - 1/x)(x + 1/x) = x^2 - (1/x)^2
= x^2 - 1/x^2
(x ^2 - 1/x^2)(x^2 + 1 /x^2)
= x^4 - 1/x^4
(x^4 - 1/x^4)(x^4 + 1/x^4)
= x^8 - 1 /x^8 Answer
1. <2, <7
2. 58
3. 78
4. a and b
h5. <2 and <7 ( i think this is the same question as the first one)
2. 2x + 7 = 123 (you have to make them equal to each other because they are consecutive interior angles)
2x + 7 = 123, subtract 7
2x = 116, divide 2 for both sides to make x by itself
x = 58
3. 78 because of consecutive interior angles
2.8
ur welcome i hope this helps
