Answer:
x=1
x=-5
Step-by-step explanation:
we know that
The solution of the system of equations is the intersection point both graphs
In this problem there are two intersection points
so
The system has two solutions
we have
one solution is the point (-4.9, 5.4) and the other (0.92, -0.42)
see the attached figure
therefore
x=1
x=-5
Step-by-step explanation:
Answer:
We have the equation:
(ax^2 + 3x + 2b) - (5x^2+bx-3c)= 3x^2 - 9
First, move all to the left side.
(ax^2 + 3x + 2b) - (5x^2+bx-3c) - 3x^2 + 9 = 0
Now let's group togheter terms with the same power of x.
(a - 5 - 3)*x^2 + (3 - b)*x + (2b + 3c + 9) = 0.
This must be zero for all the values of x, then the things inside each parenthesis must be zero.
1)
a - 5 - 3 = 0
a = 3 + 5 = 8.
2)
3 - b = 0
b = 3.
3)
2b + 3c + 9 = 0
2*3 + 3c + 9 = 0
3c = -6 - 9 = -15
c = -15/3 = -5
Then we have:
a = 8, b = 3, c = -5
a + b + c = 8 + 3 - 5 = 6
Answer:
4322.64 ft^2
Step-by-step explanation:
Diameter: 
Area of circle: 
- r = radius
Area of rectangle: 
- l = length, w = width
The area of the family's backyard is 110 × 50 = 5500 feet. Now, let's find the area of the circular swimming pool.
Next, we find the area of the concrete walkway.
After that, we add the area of the circular pool and walkway.
Lastly, subtract 1177.36 from 5500.
Therefore, the answer is 4322.64.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Is it multiplication? If it is the answer could be 6x4 or 3x8
