Answer:
5
Step-by-step explanation:
if ax^2 +bx + c ====>discriminant formula is b^2 - 4ac from the quadratic formula
x2 + 3x + 1 = 0
Then;
a=1
b=3
c=1
b^2 - 4ac = 3^2 -4*1*1
= 9-4
= 5
A, because you are able to use only the data of this July to find the average temperature. Brainliest answer, please?
Where is the graph? I do not see the graph for I can answer your question.
Answer:
x = 7
Step-by-step explanation:
The diagonals of a rectangle are congruent , so
BD = AC , that is
7x - 18 = 5x - 4 ( subtract 5x from both sides )
2x - 18 = - 4 ( add 18 to both sides )
2x = 14 ( divide both sides by 2 )
x = 7