Answer:
true
Step-by-step explanation:
* substitute 30 for x *
we're left with 15 < 20 which is true
Answer: rhombus
Step-by-step explanation: because trump is the best president
Answer:C. 3000 ft
Step-by-step explanation:
First, find the radius of the circumference.
By dividing 1000 ft by 2, which is 500, and that is the radius.
Then you multiply the radius by 3, which is 1500.
Finally, you want the circumference, to find the circumference you need to multiply the radius by 2, which is 3000 ft.
That’s it.
Consider the two functions as
<span>y1(x) =3x^2 - 5x,
y2(x) = 2x^2 - x - c
The higher the value of c, father apart the two equations will be.
They will touch when the difference, i.e. y1(x)-y2(x)=x^2-4*x+c has a discriminant of 0.
This happens when D=((-4)^2-4c)=0, or when c=4.
(a)
So when c=4, the two equations will barely touch, giving a single solution, or coincident roots.
(b)
when c is greater than 4, the two curves are farther apart, thus there will be no (real) solution.
(c)
when c<4, then the two curves will cross at more than one location, giving two distinct solutions.
It will be more obvious if you plot the two curves in a graphics calculator using c=3,4, and 5.
</span>
Answer:
The answer is 0.5
hope this help :)
Step-by-step explanation:
