Answer:
x^2-2x-4=0
Δ=2^2-4*1*(-4)
Δ=4+16=20
VΔ=2V5
x1= (2+2V5)/2=1+V5
the answer is D
Step-by-step explanation:
Answer:
36. 
| 37. 1 ( anything raise to 0 equal 1 ) | 38. 
Step-by-step explanation: Just flip the exponent degree to negative when you move it down and positive when you move it up. You will be able to solve the rest. :)
Answer:
2 pints of blood =946mililiters
Step-by-step explanation:
1 Pint =473mililters
so either 473+473=
or 473x2
2 pints of blood =946mililiters
The question is asking you to find out what number is a fraction of something. For example, the problem on the top right is asking 35 is 50% (one half) of a number so what you have to do is multiply 35 times 2 and the answer is 70
