Answer: 10 ft
Step-by-step explanation:
Her desk is a rectangle
Perimeter of a rectangle: 2 ( l + b )
l = 3 ft
b = 2 ft
2 ( 3 + 2 ) = 2 (5) = 10
The perimeter of her desk is 10 ft.
Answer: 35
Step-by-step explanation:
If you take the three angles shown, it's total is 180
So take the two angles you know, and subtract them from 180
Now we have 100 left, and we can subtract 30 to be left with 2x.
Now divide what is left by two, which is 70
70/2=35
Answer:
The quadratic function represented by the graph is .
Step-by-step explanation:
Parabolae are defined by second order polynomials, that is, a polynomial of the form:
(1)
Where:
- Independent variable.
- Dependent variable.
- Coefficients.
By Algebra, we know can calculate the set of all coefficients based on the knowledge of three distinct points. According to the graph, we have the following points: , and , and the resulting system of linear equations is:
(2)
(3)
(4)
The solution of the system of linear equations is:
Hence, the quadratic function represented by the graph is .
The answer is c .........