Answer:
£2628.80 (might not be correct, but here me out \o/)
Step-by-step explanation:
16 and overs : 18.60
under 16 : 12.80
155 people and 49 are under 16 right
155 - 49 is 106, this is the amount of 16 and overs bought a ticket
then u do 318.60 x 106 = £1971.60
and £12.80 x 49 = £657.20
then add £657.20 + £1971.60 and u get £2628.80
p.s: again im not 100% sure if its correct :)
Answer:
B) 0.9, 0.45, -0.77, -0.95
Explanation:
The correlation coefficient is a statistical measure that indicates the strength of the relationship between two variables. The value usually ranges from -1 to 1 where:
• 1 indicates a strong positive relationship.
,
• -1 indicates a strong negative relationship.
,
• A result of 0 indicates no relationship at all.
Therefore, the given correlation coefficients classified from the strongest to the weakest is:
The correct choice is B.
If you want to solve for x, then the answer is x = 6*sqrt(2) where "sqrt" is shorthand for "square root"
Explanation:
All logs below are base 4
log(5) - log(18) = log(20) - 2*log(x)
log(5) - log(18) = log(20) - log(x^2)
log(5/18) = log(20/x^2)
5/18 = 20/x^2 ... raise both sides as exponents (base = 4); logs cancel
5x^2 = 18*20 ... cross multiply
5x^2 = 360
x^2 = 360/5 ... divide both sides by 5
x^2 = 72
x = sqrt(72) ... see note below.
x = sqrt(36*2)
x = sqrt(36)*sqrt(2)
x = 6*sqrt(2)
note: we only consider the positive solution for x because x cannot be negative. We cannot input negative x values into log(x). The domain of log(x) is x > 0. So we don't consider "plus/minus" for the square root.
hmmm, the slope is undefined, that means, is a vertical line then, check the picture below.