Answer:
A. strong negative relationship
Step-by-step explanation:
This graph has a negative correlation. You can easily tell because the value of the computer is going down as the years pass.
The correlation coefficient for this graph is -0.9914443
This is a strong negative relationship
4.
gold = 150/360 = 42%....0.42(60) = 25
silver = 90/360 = 25%...0.25(60) = 15
bronze = 120/360 = 33%...0.33(60) = 20
5.
radio = 50/360 = 14%....0.14(270,000) = 37,800
internet = 90/360 = 25%...0.25(270,000) = 67,500
t.v. = 75/360 = 21%...0.21(270,000) = 56,700
magazines = 145/360 = 40%...0.40(270,000) = 108,000
6.
U.K. = 90/360 = 25%....0.25(2000) = 500
Japan = 126/360 = 35%..0.35(2000) = 700
other = 99/360 = 27.5%...0.275(2000) = 550
U.S.A. = 45/360 = 12.5%...0.125(2000) = 250
Answer: a = 8
Step-by-step explanation:
Volume of a square based pyramid is given as
.
where a is the length of the side and h is the height.
Substituting into the formula , we have
V =
128 = 
/3
384= 
X 6
Divide through by 6
384/6 =
64 =
Therefore :
a = 
a = 8
Just multiply every side by 4
A=1/2bh + A=lw A=1/25x12 A=30 + A=9x8 A=72 72+30=102
