The circumference of wheel is 6.28 feet.
Step-by-step explanation:
Given,
Area of prize wheel = 3.14 square feet
Area = πr²
Dividing both sides by 3.14
Circumference = 2πr
Circumference of prize wheel = 
Circumference of prize wheel = 6.28 feet
The circumference of wheel is 6.28 feet.
Keywords: area, circumference
Learn more about circumference at:
#LearnwithBrainly
Answer:
1 19/20 hours
Step-by-step explanation:
We solve the above question using Subtraction operation
Hence:
The number rod hours Mr. Clemens painted the barn in the afternoon than in the morning is calculated as:
5 3/4 hours - 3 4/5 hours
5- 3 +( 3/4 - 4/5)
Lowest Common Denominator = 20
2 + (15 - 16/20)
2 + -1/20 hours
= 1 19/20 hours
Answer:
Option B
Step-by-step explanation:
Given that two variables in table as
Total Average
x 2 6 7 8 12 35 7
y 15 13 9 8 5 50 10
xy 30 78 63 64 60 295 59
(x-7)^2 25 1 0 1 25 52 10.4
(y-10)^2 25 9 1 4 25 64 12.8
Var x = 10.4 and std dev x = 3.225
Var Y = 12.8 and std dev Y = 3.578
Cov (xy) = E(xy)-E(x) E(Y)=59-70=-11
Correlation coefficient r
= Cov /sx sy = -11/(3.225)(3.578)=-0.9532
Round off to get
r=-0.953
Henceoption B is right.
