Kate: Please, for clarity, use " ^ " to denote exponentiation: 2x^2 + x − 4 = 0
And please include the instructions.
2x^2 + x − 4 = 0 can be re-written: 2(x^2 + (1/2)x - 2) = 0
Dividing both sides by 2 results in x^2 + (1/2)x - 2 = 0
Let's "complete the square:" x^2 + (1/2)x + (1/4)^2 - (1/4)^2 = 0
Then (x+(1/4))^2 = (1/4)^2
Taking the sqrt of both sides: x+1/4 = plus or minus 1/4
Solving for x: x = -1/4 plus or minus 1/4
Solving for x (continued): x = 0 and x = -1/2
Answer:
Step-by-step explanation:
t - 12 = 48
t = 60
Answer:
i think its 35
Step-by-step explanation:
ab/bc = 7/3
this means ac = 10
ab/ac= 7/10
7/10= ab/50
50*7= 350
350/10= 35
Answer:the answer is 20.625
Step-by-step explanation:
If I am correct, I think you have to subtract 121 degrees from 79 degrees, and the answer would be:
B. 48 degrees
