46.5cm squared I believe
Hope this helped ;)
Answer:
15pi/60 = pi/4 hopefully this helps :)
Step-by-step explanation:
Angle in radians = arc / radius
15pi/60 = pi/4
Answer:
24.2 feet.
Step-by-step explanation:
pythagorean theorem will solve this so A^2 + B^2=C^2
we have a and c so you do c -a and square root it to get your answer
Answer:
62
Step-by-step explanation:
5 * 3 * 2 = 30
3 * 2 * 2 = 12
5 * 2 * 2 = 20
30 + 12 + 20 = 62
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.
