Answer:
Step-by-step explanation:
Hello!
A regression model was estimated in order to test if the number of units of a restaurant chain affecta the sales of said restaurant chains.
The estimated model is:
Y= a + bX
Where
Y: is the sales of a restaurant chain
X: number of units of a restaurant chain
Looking at the computed data, the estimated coefficients are:
a= 4.633131413
b= 0.439724072
The correct regression equation to predict Sales based on Units, according to this analysis, is..
Y= 4.63 + 0.44X
I hope it helps!
Given:
There are given that the two paths and one path are 2 miles from the road.
Explanation:
Suppose the distance from the playground to the road is x.
To find the value x, we need to use the cos function;
So,
From the cos function in the given right angle triangle:
Then,
Then,
Final answer:
Hence, the correct option C.
Answer:
Step-by-step explanation:
9-5 = 4
7 - (-10) = 3
9 - 4 = 5
Area of a circle is simple pi*r^2=A so rewriting the equation to solve for r^2 leads to r^2 = A/pi so plugging in numbers 682 for A and pi is just pi you get 682square meters/pi = r^2
Answer:
64ft
Step-by-step explanation:
d = distance from the Earth/ft
t = time falling/s
d ∝ t²
d = kt²
<u>d = 16 and t = 4:</u>
16 = k(4)²
16 = 16k
k = ¹⁶/₁₆
k = 1
d = t²
<u>t = 8:</u>
d = (8)²
d = 64
