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3 years ago

Which statement is true about the marginal frequencies

Mathematics

2 answers:

Tcecarenko [31]3 years ago

3 0

Answer:

Step-by-step explanation:

If U add up all the people who played sports and all the 10th graders u will get 191 and 97 and it just said I got it right

son4ous [18]3 years ago

3 0

Answer:

Step-by-step explanation:

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HELP URGENT STEP FUNCTIONS!!!!!!! Used books cost $2.25 each. Which expression represents the total number of books that can be

irinina [24]

Answer:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor$

Step-by-step explanation:

We are given,

The cost of one book = $2.25

Since, it takes $2.25 to buy 1 book.

The, for $10, we can get $\frac{1}{2.25}\times 10$ i.e. $\frac{10}{2.25}$ = 4.44

Since, number of books cannot be in decimals.

So, the closest integer to 4.44 is 4.

Hence, we can buy 4 books from $10.

Now, according to the options:

A. $\left \lfloor \frac{10}{2.25} \right \rfloor = \left \lfloor 4.44\right \rfloor = 4$

B. $\left \lceil \frac{10}{2.25} \right \rceil = \left \lceil 4.44 \right \rceil=5$

C. $\frac{10}{\left \lceil 2.25\right \rceil} =\frac{10}{3} =0.33$

D. $\frac{10}{\left \lfloor 2.25\right \rfloor} = \frac{10}{2} = 5$

Hence, we see that from the options, A is correct.

3 0

3 years ago

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Please help with all nor one otherwise you will be reported . Show and explain all your work

Vitek1552 [10]

37. Volume: l×w×h
38. Volume: (pi)r^2×h
39. Volume: (1/2b×h)×l

37. l=4
w=4
h=6

4×4×6
16×6= 96ft^3

38. (pi)=3.14
r=5
h=12

(3.14×5^2)×12
(3.14×25)×12
78.5×12= 942in^3

38. b=4
h=3
l=8

(1/2×3×4)×8
(1/2×12)×8
6×8= 48

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3 years ago

What is BC? Enter your answer in the box?

Rufina [12.5K]

Answer:

18 is your answer

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3 years ago

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Click on the measure that is equivalent to 3 kilometers.

madam [21]

Answer:

30,0000

Step-by-step explanation:

Geyuwuq

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2 years ago

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Integration of (cosec^2 x-2005)÷cos^2005 x dx is

kondor19780726 [428]

We are asked in the problem to evaluate the integral of (cosec^2 x-2005)÷cos^2005 x dx. The function is an example of a complex function with a degree that is greater than one and that uses special rules to integrate the function via the trigonometric functions. For example, we integrate
2005/cos^2005x dx which is equal to 2005 sec^2005 x since sec is the inverse of cos. The integral of this function when n >3 is equal to I=∫sec(n−2)xdx+∫tanxsec(n−3)x(secxtanx)dx
Then,
∫tanxsec(n−3)x(secxtanx)dx=tanxsec(n−2)x/(n−2)−1/(n−2)I
we can then integrate the function by substituting n by 3.

On the first term csc^2 2005x / cos^2005 x we can use the trigonometric identity csc^2 x = 1 + cot^2 x to simplify the terms

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3 years ago