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TEA [102]
3 years ago
9

A rectangle is 9 centimeters long and 5 centimeters wide. What is the diameter?

Mathematics
1 answer:
Illusion [34]3 years ago
3 0

Answer:

A rectangle doesn't has a diameter

________________________________

But if you are asking about perimeter.

Step-by-step explanation:

Perimeter = 2(l + b)

l = 9cm

b = 5cm

Perimeter = 2(l + b)

= 2(9 + 5)

= 18 + 10

= 28cm

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3 years ago
What is the value of X?
zalisa [80]

i think the answer is 8

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5 0
2 years ago
Read 2 more answers
The gestation time of cats is approximately 68 days with a standard deviation of 3.9 days and is approximately Normally distribu
avanturin [10]

Answer:  90% confidence interval would be (66.92,69.08).

Step-by-step explanation:

Since we have given that

Number of kittens = n = 35

Mean = 68 days

Standard deviation = 3.9 days

We need to find the 90% confidence interval.

So, z= 1.645

So, intervals would be

\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=68\pm 1.645\times \dfrac{3.9}{\sqrt{35}}\\\\=68\pm 1.08\\\\=(68-1.08,68+1.08)\\\\=(66.92,69.08)

Hence, 90% confidence interval would be (66.92,69.08).

5 0
4 years ago
Simplify.
Igoryamba

Answer:

8^{18}

Step-by-step explanation:

Using the rule of exponents

a^{m} ÷ a^{n} = a^{(m-n)} , then

8^{15} ÷ 8^{-3}

= 8^{(15-(-3))}

= 8^{(15+3)}

= 8^{18}

7 0
2 years ago
Does anyone know the answer?
Usimov [2.4K]
I believe it is 45. I am 50% sure so if you get it wrong... don't blame me.
4 0
3 years ago
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