Answer:
k = 2
Step-by-step explanation:
Given that x = - 1 is a root of the equation, then it satisfies the equation.
Substitute x = - 1 into the equation and solve for k, that is
3(- 1)² - 2k - 2(- 1) - 1 = 0
3 - 2k + 2 - 1 = 0
- 2k + 4 = 0 ( subtract 4 from both sides )
- 2k = - 4 ( divide both sides by - 2 )
k = 2
I just took the test and the correct answer is $19.25.
Answer:
8
Step-by-step explanation:
1/2 x 4^2 = a
4^2= 16
1/2 of 16 = 8
Answer:
43
Step-by-step explanation:
49+88=137
180-137=43
