Answer:
-96
Step-by-step explanation:
This is the right answer.
If x^2+bx+16 has at least one real root, then the equation x^2+bx+16=0 has at least one solution. The discriminant of a quadratic equation is b^2-4ac and it determines the nature of the roots. If the discriminant is zero, there is exactly one distinct real root. If the discriminant is positive, there are exactly two roots. The discriminant of <span>x^2+bx+16=0 is b^2-4(1)(16). The inequality here gives the values of b where the discriminant will be positive or zero:
b^2-4(1)(16) ≥ 0
</span><span>b^2-64 ≥ 0
(b+8)(b-8) </span><span>≥ 0
The answer is that all possible values of b are in the interval (-inf, -8]∪[8,inf) because those are the intervals where </span>(b+8)(b-8) is positive.
Answer:
The least common multiple of 30, 25, 4 is 150.
Step-by-step explanation:
The given numbers are 30, 25 and 4.
The factors of given numbers are
The L.C.M of given numbers is a smallest number that divides the given numbers completely.
Therefore the least common multiple of 30, 25, 4 is 150.
Answer:
-x-28
Step-by-step explanation:
2x^2 -3x-28
then -3x -2x^2 is -x and then add on -28
Answer:
168
Step-by-step explanation:
the angles of a hexagon should add us to 720, subtract all teh given angles from the total and you find x.
