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Readme [11.4K]
4 years ago
8

A kitchen is 10ft long and 8ft wide.if kitchen floor tiles

Mathematics
1 answer:
Vilka [71]4 years ago
7 0

Answer:

1536 tiles

Step-by-step explanation:

Given,

The length of kitchen = 10 ft,

Width of the kitchen = 8 ft,

∵ The shape of floor of kitchen must be rectangular,

Thus, the area of the kitchen = 10 × 8 = 80 square ft = 11520 in²

( Since, 1 square feet = 144 square inches )

Now, the length of a tile = 2.5 in and its width = 3 in,

So, the area of each tile = 2.5 × 3 = 7.5 in²,

Hence, the number of tiles needed = \frac{\text{Area of kitchen}}{\text{Area of each tile}}

=\frac{11520}{7.5}

= 1536

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Let the lengths of pregnancies be X
X follows normal distribution with mean 268 and standard deviation 15 days
z=(X-269)/15

a. P(X>308)
z=(308-269)/15=2.6
thus:
P(X>308)=P(z>2.6)
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b] Given that if the length of pregnancy is in lowest is 44%, then the baby is premature. We need to find the length that separates the premature babies from those who are not premature.
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thus the value of x will be found as follows:
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3 years ago
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Answer:

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Step-by-step explanation:

Folosind formula:

Aria unui paralelogram = (baza x înălțimea)

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Step-by-step explanation:

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