Answer:
(A)
Step-by-step explanation:
(D) is already out since the teachers may have favorites or unfavorites.
(C) is already out since you can't be in all the halls at once.
There is only (A) and (B).
I think it's (A) and not (B) because it might not be a classes/grades library day.
It would be 100. If you divide 100/10, you get 10, multiply that by 9 and you’d get 90.
Answer:
(x² - 8x + 16) = (x-4) (x-4)
Step-by-step explanation:
We have to factorize the given expression
(x²-8x+16)
(x² - 8x + 16 ) = x² - 2(4x) + 4²
= ( x-4)²
[As we know (a-b)² = a² + b² - 2ab]
so (x² - 8x + 16) = (x-4) (x-4) is the factored form of the given expression.
Answer:
x = - 4, y = 7
Step-by-step explanation:
Given the 2 equations
- 7x - 2y = 14 → (1)
6x + 6y = 18 → (2)
Multiplying (1) by 3 and adding to (2) will eliminate the y- term
- 21x - 6y = 42 → (3)
Add (2) and (3) term by term to eliminate y
- 15x = 60 ( divide both sides by 15 )
x = - 4
Substitute x = - 4 into either of the 2 equations and evaluate for y
Substituting into (2)
6(- 4) + 6y = 18
- 24 + 6y = 18 ( add 24 to both sides )
6y = 42 ( divide both sides by 6 )
y = 7
Answer:
225 miles
Step-by-step explanation: I like your name LOL
