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3 years ago

Help please I need to submit soon

Mathematics

2 answers:

Alina [70]3 years ago

8 0

Answer:

THXSSSS UUUU SWOOOO MUCHHHHHHH

Step-by-step explanation:

den301095 [7]3 years ago

3 0

Step-by-step explanation:

(2.3)^2 +5^2= ?

=6^2 +5^2

= 61

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Using the frequency table given, find the mean, median, and mode.

aalyn [17]

Answer:

$Mean = 69$

$Mode = 66$

$Median = 69$

Step-by-step explanation:

Given

The frequency table

Required

Determine the mean, median and mode

Calculating Mean

$Mean = \frac{\sum fx}{\sum f}$

Where

fx = product of frequency and inches

f = frequency

So;

$Mean = \frac{63 * 2 + 65 * 1 + 66 * 4 + 67 * 3 + 68 * 1 + 69 * 2 + 70 * 2 + 71 * 1 + 72 * 3 + 74 * 2 + 75 * 2}{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}$

$Mean = \frac{1587}{23}$

$Mean = 69$

Calculating Mode

$Mode = 66$

Because it highest frequency of 4

Calculating Median

$Median = \frac{\sum f}{2}th\ position$

$Median = \frac{2 + 1 + 4 + 3 + 1 + 2 + 2 + 1 + 3 + 2 + 2}{2}th\ position$

$Median = \frac{23}{2}th\ position$

$Median = 11.5th\ position$

Approximate

$Median = 12th\ position$

At this point we, need to get the cumulative frequency (CF)

Inches ---- Frequency ---- CF

63 -------------2------------------2

65 -------------1------------------3

66 -------------4------------------7

67 -------------3------------------10

68 -------------1------------------11

69 -------------2------------------13

70 -------------2------------------15

71 -------------1------------------16

72 -------------3------------------19

74 -------------2------------------21

75 -------------2------------------23

From the above table

Since the median fall in the 12th position, then we consider the following data

69 -------------2------------------13

because it has a CF greater than 12

Hence;

$Median = 69$

7 0

4 years ago

G(x) = x2 + 3, what is the change made to g(x) if the parent function is f(x) = x2?

swat32

G(x) x^2 + 3 is obtained by shifting the graph of f(x) = x^2 3 units up.

7 0

3 years ago

Which equation is equivalent to 60% of 25? Select all that apply.

den301095 [7]

Answer:

Step-by-step explanation:

60% of 25 is equivalent to:

A. 0.6 * 25 = x

8 0

3 years ago

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Here is the question

Fittoniya [83]

The answer is (4,8). I hope this helps.

4 0

4 years ago

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Christine used 12 cubes to make this 3-step staircase. If she used a total of 56 cubes to make a similar staircase, how many ste

katen-ka-za [31]

What we have here are steps where each step requires twice as many blocks as the height of the steps. If you would like to check this math we can look at the staircase given:
3x2 + 2x2 + 1x2 = 6 + 4 + 2 = 12.

We can see that the math works, so now we can do the same work to find out how many steps 56 cubes can make.

6x2 + 5x2 + 4x2 + 3x2 + 2x2 + 1x2 = 42 (6 steps)
7x2 + 6x2 + 5x2 + 4x2 + 3x2 + 2x2 + 1x2 = 56 (7 steps)

Therefore, the answer is B. 7 steps.

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4 years ago

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