Answer:
(-4 , 1)
Step-by-step explanation:
We know that the turning point of any parabola is in its vertex. The x of the vertex can be calculated with the formula:
x = -b/2a
In our case b = 8, a = 1, so:
x = - 8/2 = -4
We plug this value into our original equation and find the y of the vertex:
(-4)^2 + 8(-4) + 17 = 16 - 32 + 17 = 1
Vertex = (-4 ; 1)
Answer:
angles are 40 and 50
Step-by-step explanation:
let angles be 4x , 5x
4x + 5x = 90
x= 90 / 9
x= 10
angles are 4x , 5x
therefore angles are 40 , 50
Answer:
11
Step-by-step explanation:
1. fill in the variables
3(7)- 5(2)
2. Multiply
21- 10
3. Subtract
21-10=11