Answer:
-100/5
Step-by-step explanation:
-21<-20
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 ratio of trucks to cars will be
Step-by-step explanation:
Given:
Ratio of cars to trucks is given as 3 cars to 7 trucks.
The ratio of cars to trucks in the mall can be represented as
To find ratio of trucks to cars in the mall.
In order to find the ratio of trucks to cars we reciprocate the ratio of cars to trucks.
If ratio of cars to trucks
Then ratio of trucks to cars will be
Answer:
The equation of this line would be y = -6
Step-by-step explanation:
In order to find this, we must first find the slope. For that we use the two points and the slope equation.
m(slope) = (y2 - y1)/(x2 - x1)
m = (-6 - -6)/(7 - 3)
m = 0/4
m = 0
Given that slope, we can use it along with a point in point slope form. From there we can solve for y and get the equation.
y - y1 = m(x - x1)
y + 6 = 0(x - 7)
y + 6 = 0
y = -6
Answer:
h/2
Step-by-step explanation: