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vesna_86 [32]
3 years ago
12

Rosario is working on an 8-foot-by- 8-foot floor covered with 64 white tiles. She replaces x white tiles with blue tiles. After

she's finished, there are 40 white tiles left. Write and solve an equation to find the number of blue floor tiles Rosario used.​
Mathematics
1 answer:
timofeeve [1]3 years ago
5 0

Answer: 24 blue tiles.

Step-by-step explanation:

Initially, the floor is (completely) covered with 64 white tiles.

Now we remove x white tiles, and we replace them with blue tiles.

Then if we removed x white tiles, now the number of white tiles is:

64 - x

And we know that after Rosario finishes the work, there are 40 white tiles left in the floor.

Then:

64 - x = 40

now we can solve this for x.

64 - 40 = x

24 = x

this means that 24 blue tiles were used.

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Step-by-step explanation:

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3 years ago
The equation h(t) = 1.2 + 40t – 5t2 models the height, in meters of a ball t
Marina CMI [18]

Answer:

Step-by-step explanation:

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The general formula for solving quadratic equations is expressed as

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From the equation given,

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Therefore,

t = [- - 40 ± √(- 40² - 4 × 5 × 38.8)]/2 × 5

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Answer:

D: The function has a hole when x = 3, and vertical asymptotes when x = 0 and x = 5.

Step-by-step explanation:

The given rational function has vertical asymptotes and holes. Remember that an asymptote is placed when the function has undetermined results, when we give a x-value and the y-value cannot be determined, there we say exists an asymptotes, which is a punctual line that represents a discontinuation of the graph, the trace cannot cross that asymptote, it divide the whole function graph.

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4 0
3 years ago
Read 2 more answers
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