(X) and (y) use these letter it will help
Answer:
C
Step-by-step explanation:
given 7 - 4(x - 1) = 20 ( Step 1 is to distribute the parenthesis )
7 - 4x + 4 = 20 ( not 7 - 4x + 1 = 20 ← - 1 is multiplied by - 4 )
Step 1 ← is incorrect → C
The answer is 9 because 17-8=9
Answer:
-a^2 - a + 12
Step-by-step explanation:
You only need to find the products of the first and last terms to determine the correct answer:
(-a)(a) = -a^2
(3)(4) = 12
You're looking for an expression with -1 as the leading coefficient and +12 as the constant. There is only one choice like that:
-a^2 - a + 12
Your answer would be x=8
4=√2x ( switch the sides )
√2x=4 ( square both sides )
2x=16 ( divide both sides by 2 )
x=8