Answer:
9 seconds
Step-by-step explanation:
The complete question is
The altitude of an object, d, can be modeled using the equation below:
d=-16t^2 +vt+h
from the edge of a 486 foot cliff, Peyton shot an arrow over the ocean with an initial upward velocity of 90 feet per second. In how many seconds will the arrow reach the water below?
Let
d ----> the altitude of an object in feet
t ---> the time in seconds
v ---> initial velocity in ft per second
h ---> initial height of an object in feet
we have

we know that
When the arrow reach the water the value of d is equal to zero
we have



substitute the values and solve for t


Multiply by -1 both sides

The formula to solve a quadratic equation of the form
is equal to
in this problem we have
substitute in the formula
the solution is t=9 sec
see the attached figure to better understand the problem
Answer:
38,4000 and 25,150
Step-by-step explanation:
add colum 1 and 3 together on each side for each different car and divide them by the percentage
110 and 294 are the outliers because their difference in value from other data is large.
<h3>What are outliers?</h3>
- An outlier is an observation that lies an abnormal distance from other values in a random sample from a population.
<h3>sample of data</h3>
Given the sample data 110, 196, 197, 199, 205, 208, 209, 210, 210, 294, we need to get the outliers that are an observation that lies an abnormal distance.
From the data, we can see clearly that 110 and 294 are the outliers. Their difference in value from other data is large.
Learn more on outliers here: brainly.com/question/2749543