18 + 81 = 9(x²<span> + 6x + 9)
</span><span>11 = (x + 3)</span>²
When we are completing the square, we are going to move the value of c across the equals. We will do that by adding, and end up with
18=9(x²+6x)
We take the value of b (the coefficient of x), divide it by 2 and square it:
(6/2)²=3²=9
This is the value that completes the square. However, since the entire square is multiplied by 9, this value must be multiplied by 9 before we can add it across the equals:
18+9(9) = 9(x²+6x+9)
18+81=9(x²+6x+9)
99=9(x²+6x+9)
Dividing both sides by 9, we have:
11=x²+6x+9
11=(x+3)²
Answer:
21+3g
Step-by-step explanation:
If triangle ABC is equilateral,solve for X56x-308
Answer:
in first case of rectangle it is not congruent and not same
in second case of circles they are not congruent but same
in third case of the figure they are congruent and same but directions changed
in fourth case of triangle they are not congruent but similar
First, We Have Find What Two Fifths Of 150. So, Divide 150 By Five To Find 1/5 Of 150.
150 ÷ 5 = 30.
Now, To Find 2/5 Of 150, Multiply 30 By Two. So:
30 * 2 = 60
So, 60 = 2/5 of 150.
So, subtract 60 from 150.
150 - 60 = 90.
So, now we need to add 35, because 35 people get back on.
90 + 35 = 125
There are 125 passengers when the train leaves.
