Answer:
The equation for the relationship is 
.
Step-by-step explanation:
Given that point 
is part of a direct relationship. That is:
(1)
Where 
is the proportionality constant.
If we know that 
and 
, then the proportionality constant is:
Lastly, the equation for the relationship is .
The mistake is there is no parenthesis around 4x+12
Please: Use "^" to denote exponentiation: <span>2x^2 + 8x - 12 = 0
Reduce this by div. every term by 2: </span><span>x^2 + 4x - 6 = 0
Here a=1, b=4 and c = -6. Square half of b, obtaining (4/2)^2 = 4, and add, and then subtract, this 4 to x^2 + 4x - 6:
</span> x^2 + 4x +4 - 4 - 6 = 0. Rewrite the square as (x+2)^2, obtaining new equation
(x+2)^2 = 10. Take the sqrt of both sides: x+2 = plus or minus sqrt(10).
Finally, solve for x: x = -2 plus or minus sqrt(10).
That is basically splitting the sentence so that it’s easier for you to solve it. It’s basically the same thing
Step-by-step explanation:
Given that,
The mass of a patient = 70 kg
A 70kg patient has approximately 8 pints of blood.
The patient donates 470mL of blood.
We know that,
1 pint = 568 mL
8 pints = 4544 mL
Required fraction,
So, the required fraction is approximately 
.
