The area of the bare spot the gardener needs to replant is 201 square feet
Step-by-step explanation:
We have to find the area of the circular bare spot
Given
Radius of bare spot = r = 8 inches
The formula for area of a circle is given by:
putting the value
Rounding off to nearest foot
201 ft^2
Hence,
The area of the bare spot the gardener needs to replant is 201 square feet
Keywords: Area, radius
Learn more about area of circle at:
#LearnwithBrainly
Answer:
1) The linear regression model is y = -0.0348·x + 13.989
2) The correlation coefficient is -0.0725
3) The strength of the model is strong - association
Step-by-step explanation:
1)
X Y XY X²
27 13 351 729
65 12 780 4225
83 11 913 6889
109 10 1090 11881
142 9 1278 20164
175 8 1400 30625
∑ 601 63 5812 74513
From y = ax + b, we have
b = 1/n(∑y -a∑x) = 1/6(63 - (0.0348)×601) = 13.989
Therefore, the linear regression model is y = -0.0348·x + 13.989
2)
3) The strength is - association.
Answer:
C.
Step-by-step explanation:
We are given that an expression
We have to find the simplified form of given expression.
We know that
Using the property then we get
Hence, the simplified form of is given by
Option C is true.