4 years ago

What is the surface area of a rectangular prism with square bases wirh measurements a= 5 cm ,b= 7cm

Mathematics

1 answer:

vazorg [7]4 years ago

7 0

Answer:

190 cm^2

Step-by-step explanation:

There are 2 congruent square bases: 5 cm * 5 cm * 2 = 50 cm^2

There are 4 congruent rectangular sides: 5 cm * 7 cm * 4 = 140 cm^2

Total surface area: 50 cm^2 + 140 cm^2 = 190 cm^2

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Rounded to the nearest 3 decimal places, what is the value of r for this data set?

bogdanovich [222]

Using geogebra (see attached), I get roughly r = 0.98886 which rounds to r = 0.989

Answer: 0.989

Side Note: The fact that r is very close to +1 means the data set has strong positive linear correlation. The points all fall very close to a line with positive slope.