Answer:
Step-by-step explanation:
- Initial number of hours = 5
- Increased number of hours = 7
<u>Change</u>:
<u>Percent change:</u>
Just plug -3 where x is into the equation 2x^2 + 6 and solve
f(-3) = 2(-3)^2 + 6
f(-3) = 2(9) + 6
f(-3) = 18 + 6
f(-3) = 24
Answer:x=-2
Step-by-step explanation:
3 x -2^2
3 x -4 = -12
The first thing we must do in this case is to define variables.
We have then:
x: speed of the giraffe
x + 5: speed of the ostrich
By definition we have:
d = v · t
d / v = t
Where,
d: distance
v: speed
t: time
Since the time is the same then we have:
5 / (x + 5) = 4 / x
5x = 4 (x + 5)
Clearing x we have:
5x-4x = 20
x = 20 mph (speed of the giraffe)
x + 5 = 20 + 5 = 25 mph (speed of the ostrich)
Answer:
20 mph (speed of the giraffe)
25 mph (speed of the ostrich)
Answer:
A transformation changes the size, shape, or position of a figure and creates a new figure.