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n200080 [17]
4 years ago
7

Pls help!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
mylen [45]4 years ago
5 0

Answer:

the cost is 2$  more  answer choice is b

Step-by-step explanation:

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A group of students made trees out of paper for a scene in a school play. The trees are shaped like square pyramids.
Nitella [24]

Answer:

idk what ur asking so i cant help

Step-by-step explanation:

5 0
3 years ago
Which expression is equivalent to one over three p + 15? (4 points) one over three (p + 45) one over three (p + 5) 3(p + 45) 3(p
Fiesta28 [93]

Answer:

Which expression is equivalent to one over three p + 15? (4 points)

one over three (p + 45)

one over three (p + 5)

<u>3(p + 45) </u>

3(p + 5)

Step-by-step explanation:

3 0
3 years ago
Evaluate the expression when n=3. 3 squared+ 16​
natita [175]
3^2 + 16
= (3 • 3) + 16
= 9 + 16
= 25

~
5 0
3 years ago
The number of siblings an individual has varies from student to student. The distribution of the number of siblings is strongly
ivanzaharov [21]

Answer:

(e) the mean number of siblings for a large number of students has a distribution that is close to Normal.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

By the Central Limit Theorem

The sampling distributions with a large number of students(at least 30) will be approximately normal, so the correct answer is given by option e.

7 0
3 years ago
In an optical fibre, the power drops by a factor of 10 approximately every 30 km. If the transmit power is 0. 35 W, how far will
IgorC [24]

Answer:

  • 30000 km

Step-by-step explanation:

First convert the transmit power into μW, considering 1 W = 1000000 μW:

  • 0.35 W = 0.35*1000000 μW = 350000 μW

Find how many factors of 10 the power dropped:

  • 350000 / 350 = 1000

Find the distance:

  • 1000*30 km = 30000 km
4 0
3 years ago
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