Answer:
Hundreths
Step-by-step explanation:
Using cross multiplication,
30 x 14 = 20 x w
so
w = 420/20
w = 21
Answer:
your dog is 1.13 meters tall
113/100=1.13
Step-by-step explanation:
The height of the project becomes zero when it hits the ground which is also the total time at which the projectile stays in the air. Equating the function to zero:
-10(x)(x - 4) = 0
The roots of this quadratic equation are:
x = 0, and x=4
Therefore, the projectile stays in the air for
4 seconds