Answer:
Step-by-step explanation: ok so first you need to circle all your variables x.
which are 2.4x+5x+3.1x adding those you get 10.5.
then circle your variables y which is 8.6y+6.5y+7y you get 22.1 then subtract those you get -11.6
hope this helps
PLZ BRAINLIEST PLZ
To determine the similarity ratio, we need to compare the sides of the cubes. Unluckily, we are given the volumes, so we will need to find the sides by calculation.
First cube:
512 m^3
Taking the cube root (or thinking about it), we can find that the side length must be 8 m.
Second cube:
3375 m^3
Similar idea, we can find that the side length must be 15 m.
The similarity ratio is 15/8 or approximately 1.875.
Answer:
10
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
($47.245; $61.575)
Step-by-step explanation:
Mean sample repair cost (X) = $54.41
Standard deviation (s) = $28.89
Sample size (n) =44
Z-score for a 90% confidence interval (z) = 1.645
The confidence interval, assuming a normal distribution, is given by:
Applying the given data, the lower (L) and upper (U) bounds of the interval are:
The confidence interval is I = ($47.245; $61.575)
