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2 years ago

8

Is 45.6 a irrational number!!???

1 answer:

notsponge [240]2 years ago

6 0

No

Mark brainliest please

Hope this helps you

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66 randomly selected students were asked the number of pairs of shoes they have. Let X representthe number of pairs of shoes. Th

laiz [17]

Given data

1. The mean

$\frac{\sum fx}{\sum f}=\frac{505}{66}=7.6515$

2. The median

$\begin{gathered} \text{ Median = (}\frac{\text{N+1}}{2})th \\ =(\frac{66+1}{2})th=(\frac{67}{2})th=33.5th \\ \text{The median is the 33.5th }term\text{ which is between 7 and 8} \\ \text{The median is }\frac{\text{7+8}}{2}=\frac{15}{2}=7.5 \end{gathered}$

3. The sample standard deviation

$\begin{gathered} SD\text{ =}\sqrt[]{\frac{\sum f|x-\bar{x}|}{\sum f}} \\ \bar{x}=7.6515 \\ SD=\sqrt[]{4.8028} \\ SD=2.1915 \end{gathered}$

8 0

1 year ago

Solve the following equation in slope-intercept form

nasty-shy [4]

Answer:

A. y=7x+18

Step-by-step explanation:

6 0

3 years ago

max read 1/8 of his book on Monday and 1/6 of his book on Tuesday. what fraction of his book did he read altogether on these day

miskamm [114]

1/8 + 1/6
= 1 x 3 + 1 x 4
——- ——
8 x 3 6 x 4

= 3/24 + 4/24
= 3 + 4
———-
24
= 7/24

8 0

3 years ago

Jenny needs to trim some ribbon off of her ballet shoe She has 0.8 foot of ribbon on the shoe and needs to trim 0.2 of the amoun

Rainbow [258]

Answer:

0.16

Hope this Helps!

3 0

3 years ago

Rama09 [41]

Answer:

True

Step-by-step explanation:

Permutation is act of arranging members of a set while combination is selection of the items from collection.

The number of permutation of r object out of n is:

$^nP_r=\frac {n!}{(n-r)!}$

The number of combinations of r object out of n is:

$^nC_r=\frac {n!}{(n-r)!\times r!}$

Or,

$^nC_r=\frac {^nP_r}{r!}$

So, number of the permutations of r objects out of n is greater than number of the combinations of r objects out of n.

7 0

3 years ago