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balu736 [363]
3 years ago
12

What is 70% of 400??

Mathematics
2 answers:
Vinil7 [7]3 years ago
6 0

Answer: 280

Step-by-step explanation:

change 70 into a decimal, by moving the period 2 times the the left etc. and multiply it by 400 to get the answer.

0.70 x 400 = 280

ELEN [110]3 years ago
4 0
70 percent of 400 = 280
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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
Which expression can be used to convert 22 Australian dollars to US dollars? Assume 1. 2 Australian dollars equals 1 US dollar.
kolbaska11 [484]

The correct expression to convert the 22 AUD into USD is option A.

<h2>How do you convert the Australian dollars into US dollars?</h2>

Given that the value of 1 US dollar is equal to the value of 2 Australian dollars. We can write this as given below.

1 USD = 2 AUD

1 AUD = 1/2 USD

The 22 Australian dollars can be converted as,

22 \;\rm AUD = \dfrac {1}{2}\times 22 \;\rm USD

Hence the correct expression to convert the 22 AUD into USD is option A.

To know more, follow the link given below.

brainly.com/question/19943359.

3 0
2 years ago
5√28+ √63<br> please simplify no exponents please
zaharov [31]

Answer:

34.3948

Step-by-step explanation:

5\sqrt{28} +\sqrt{63} = 13\sqrt{7} = 34.3948

3 0
3 years ago
Read 2 more answers
Two people are scuba diving. One diver is 36 feet below the surface. The other diver is 44 feet below the surface. What integers
JulijaS [17]
-44 is deeper. He’s the farthest from 0. There locations represent where they are in respect to the surface. Hope this helped a little bit!
6 0
3 years ago
Question 9 of 10
dem82 [27]

Answer:

B. g(x) = 3/4|x|

Step-by-step explanation:

Multiplying the function by a number in front will stretch, compress, and/or reflect the function over the x-axis.

So if the number in front is negative that will flip it upside down, over the x-axis.

If the number is greater than 1, the function will be vertically stretched, narrower, slimmer, skinnier, taller.

In this case, the graph is vertically compressed, making it flatter, fatter, wider smashed. In this case is where the number multiplied in front of the parent function is LESS than one.

g(x) = 3/4 |x|

6 0
3 years ago
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