1. You con solve the quadratic equation x^2+20x+100=50<span> by following the proccedure below:
2. Pass the number 50 from the right member to the left member. Then you obtain:
x^2+20x+100-50=0
</span><span> x^2+20x+50=0
</span><span>
3. Then, you must apply the quadratic equation, which is:
x=(-b±√(b^2-4ac))/2a
</span><span>x^2+20x+50=0
</span><span>
a=1
b=20
c=50
4. Therefore, when you simplify, the result is:
-10</span><span>±5</span>√2 (It is the last option).<span>
</span>
Answer:
18 + √3
Step-by-step explanation:
The product of a surd and its conjugate gives a rational number. Hence;
(18 - √3) (18 + √3)
=324 + 18√3 - 18√3 - 3
=321
A rational number does not contain any surd, hence the answer.
You would divide.
Think of it as a 'real' situation. You are holding a piece of wire and you cut it into 3 pieces so you have 'divided' it into 3 pieces.
62.4 divided by 3 = ??
The answer is 20.8 per piece
To check your answer you can take 20.8 and multiply it by 3.
Answer:
C) 120
Step-by-step explanation:
300. 100 cm in a meter, times three meters is 300.
