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Answer:
(you have to have the .0 since it says to round to the nearest <em>tenth</em>)
Step-by-step explanation:
The formula for the surface area of a rectangular prism is:
So just plug in the values.
Height= 4
Width=2
Length=5
78.6 = Seventy eight and six tenths.
Answer:
x = 17.2
Step-by-step explanation:
since they are supplementary, when you add then together they equal 180
4x + 8 + 6x = 180
Combine like terms
10x + 8 = 180
subtract 8 from both sides
10x = 172
divide each side by 10
x = 17.2
hope this helps :)
Answer:
positive
Step-by-step explanation:
The discriminant is positive
If there are 2 real roots ( where it crosses the x axis), then the discriminant is positive
