Answer:
and 
and b=
Step-by-step explanation:
We are given that a quadratic equation

We have to solve the equation by completing square and find the value of b.






and 

And 
Therefore,
and 
and b=
Answer: 15:8
Step-by-step explanation:
Acacia leaves= 15 bags
Eucalyptus leaves=8 bags
A ratio compares two amounts and uses a :
We are comparing acacia leaves bags to eucalyptus leaves bags
So-
15:8
We cannot simplify any more, so keep 15:8.
Answer:
Value of x is 90°
Step-by-step explanation:
Why?Imagine it as a shape of circle.
Circle has a measurement total of 360°
Semi cirlcle(half of the circle) is equivalent to 180
Now,
The bottom semi circle has a 146°
The top has a 56°
You can simply compute it by subtracting them.

Answer:
Step-by-step explanation:
10x + 14y = 18.....reduce by dividing everything by 2 and u end up with 5x + 7y = 9
notice how both equations are now the same....means same line.....this means ur solution is : INFINITE SOLUTIONS
Answer:
#4. in a decimal its 0.5
before simplfied its 6\12
after simplfied its 1\2
#5. in a decimal its 0.28125
in fraction 9/32