The cost to install a certain kind of floor tile is $20 per square foot. The total cost to install in an x-foot-by-x-foot room i
s f(x)=20x^2.
What is a reasonable domain?
How much for an 8-foot-by-8-foot?
1 answer:
Answer:
x > 0; $1280
Step-by-step explanation:
Domain should be x > 0 because length is not negative
When x = 8
Cost = 20(8²) = 1280
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yeah you are right.
V = 1/3 × base × height
V = 1/3 × ( 8 × 8 ) × 7
V = 1/3 × 64 × 7
V = 448/3
V = 149.33333
V = 149.3
Y =2x. Your multiplying Christina's score by 2 to get the correct score.
