Which statement about events in World War || is not true?
A) Nazi terror weapons, called V-1s and V-2s, killed thousands of people in Great Britain.
B) Germany’s industries and cities were devastated by allied bombing raids.
C) American forced used new types of ships to attack Japanese-held islands in the pacific.
D) German and Japanese scientists succeeded in breaking the allies most secret codes.
The graph models the function y = −x2 − x + 6. Which attribute(s) of the graph tell you the root(s) of the function? Determine the root(s).
Answer:
Roots are -3, 2
Step-by-step explanation:
y = −x^2 − x + 6
To find out the roots we set y=0 and solve for x
0 = -x^2 -x+6
Factor out -1
0=-1(x^2+x-6)
divide both sides by -1
x^2 +x -6=0, factor x^2 +x-6
product is -6 and sum +1
3* (-2) = -6
3-2= 1
so factors are 3 and -2
x^2 +x -6=0
(x+3)(x-2)=0
Set each factor =0 and solve for x
x+3 =0 , so x=-3
x-2=0, so x= 2
Roots are -3, 2