Answer:
Step-by-step explanation:
We must rewrite 7x^2 = 9 + x in standard form first: 7x^2 - x - 9 = 0.
The coefficients are 7, -1 and -9, and so the discriminant b^2 - 4ac is
(1)^2 - 4(7)(-9) = 253.
The roots are:
-(-1) ± √253 1 ± √253
x = --------------------- = --------------------
2(7) 14
Answer:
yes
Step-by-step explanation:
This is true. It is called the exterior angle theorem. An example would taking a right triangle. An outside angle of the right angle would also be 90, while the remaining two inside's sum would also be 90.
Answer:
Step-by-step explanation:
Prove that AC and BD have the same midpoint. The diagonals of a parallelogram bisect each other; therefore, they have the same midpoint.
The function's value will always be greater than or equal to the local linear approximation of a function f if, for all x in an interval containing thepoint of tangency.This refers to the the value that the first derivative of the function is positive or greater than zero.
So accordingly,we will select the option D: f' (x)>0
I hope it works
