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3 years ago

Find the second decile of the following data set 24, 64, 25, 40, 45, 34, 14, 26, 28, 24, 58, 51 D2 =

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

Answer:

D2 = 24

Step-by-step explanation:

given is a data set as

24, 64, 25, 40, 45, 34, 14, 26, 28, 24, 58, 51

We have to find the second decile for the above

Arranging in ascending order we get

14, 24, 24, 25,26,28, 34, 40, 45, 51, 58, 64

2nd decile is equal to 20th percentile

20th percentile formula entry appearing which sorts 20% below and 80% above.

i.e. (20%*(14+1)) = 3rd entry

Thus 20th percentile is24.

D2 = 24

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Explanation needed

vagabundo [1.1K]

Answer:

A‘‘ (1,6)

Step-by-step explanation:

after a reflection about a horizontal line the x coordinates remain the same

the middle point of the segment AA’ lies on the line so it has y = -1

so we have

(y+y’)/2 = -1

y’ = -2 -y

y‘ = -2 -2 = -4

so A‘ (1,-4)

we can use the same reasoning to find the reflection about y = 1

x‘ = x

(y + y’)/2 = 1

y‘ = 2+4

y’ = 6

A‘‘(1,6)

8 0

2 years ago

Triangle TRI has a base of m centimeters and a height of n centimeters. Rectangle RECT has a length of n centimeters and a width

miskamm [114]

Answer:

Area of a triangle = $\frac{1}{2}$ area of rectangle

Step-by-step explanation:

Given:

Height of triangle = n cm, Base of triangle = m

Length of rectangle = n cm, Width of rectangle = m cm

Area of ΔTRI = $\frac{1}{2}$ base × height

= $\frac{1}{2}$ ( m ) × (n) ⇒ $\frac{1}{2}$ mn

Area of Rectangle RECT = Length × Width

= m × n ⇒ = mn

Comparing Area of triangle and rectangle.

$\frac{1}{2}$ mn = mn

We can conclude that area of triangle is half of the area of rectangle.

7 0

3 years ago

Subtract -b+3 from -11-4

NeX [460]

-11-4 - (-b+3)
Distribute the negative sign
-11-4+b-3
Simplify like terms -11, -4, and -3, making sure to remember their sign.
-11-4-3 = -18
So the answer would be b-18 or -18+b.

3 0

3 years ago

Which number line shows point M at 4/3

Crazy boy [7]

Answer:

Step-by-step explanation:

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2 years ago

How many solution does each graph have

SVEN [57.7K]

Answer:

one solution 

no solution 

infinity solutions 

Step-by-step explanation:

A: If the graphs of the equations intersect, then there is one solution that is true for both equations.

B; If the graphs of the equations do not intersect (for example, if they are parallel), then there are no solutions that are true for both equations.

C; If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations

4 0

3 years ago