Answer:
Skater 500 m / 40 sec = 12.5 m/ sec
Cheetah 260 / 10 = 26 m/ sec
The cheetah is more than twice as fast as the skater.
Step-by-step explanation:
Answer:
Here's what I get
Step-by-step explanation:
The formula for a quadratic equation is
ax² + bx + c = 0
The quadratic formula gives the roots:
D is the discriminant.
It tells us the number of roots to the equation — the number of times the graph crosses the x-axis.
It doesn't matter if the graph opens upwards or downwards.
If D > 0, the graph crosses the x-axis at two points.
If D = 0, the graph touches the x-axis at one point.
If D < 0, the graph never reaches the x-axis.
Your graph must look like one of the two graphs on the right in the Figure below.
Answer:
x= 8 and y= 8 square root of 2
Step-by-step explanation: