Answer: 44.7
Step-by-step explanation:
Mean= total sum of data set/ number of data set
313÷7
Mean = 44.7
Answer:
y = 0.47x + 25
y1 = 41.45 and not 55.55
Step-by-step explanation:
Given that:
x = number of brochures
y = total. Cost
Total cost of 35 brochures = $41.45
Total cost of 65 brochures = $55.55
The ordered pairs :
(x1, y1) ; (x2, y2)
x1 = 35 ; y1 = 41.45 ; x2 = 65 ; y2 = 55.55
(35, 41.45), (65, 55.55)
The slope :
Slope (m) = change in y / change in x
m = (y2 - y1) / (x2 - x1)
m = (55.55 - 41.45) / (65 - 35)
m = 14.1 / 30
m = 0.47
The y intercept :
y - y1 = m(x - x1)
y - 41.45 = 0.47(x - 35)
y - 41.45 = 0.47x - 16.45
y = 0.47x - 16.45 + 41.45
y = 0.47x + 25
Lila incorrectly chose 41. 45 as y1
A. 2.76 miles B. 4,855 yards C. 14,565 feet
Answer:
And since the time can't be negative we have that:
So the answer for this case would be after 10.36 seconds the rocket will hit the ground
Step-by-step explanation:
For this case we have the function of the height in terms of the time givenby:
And we want to known when the rockect hit the ground and for this case we need to solve the equation 
And as we can see we have a quadratic equation like this one:
Where: 
And the general solutions are given by:
If we replace the values that we have we got:
And since the time can't be negative we have that:
So the answer for this case would be after 10.36 seconds the rocket will hit the ground
Answer:
3
Step-by-step explanation:
Terms are the values in an expression. They include exponents and variables. in this expression there are three terms:
1 - 5x
2 - 2y
3 - 12
