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Volgvan
3 years ago
15

Here is a list of numbers 2 17 1 13 7 18 14 18 20 state the median

Mathematics
2 answers:
Vitek1552 [10]3 years ago
8 0

Answer:

14

Step-by-step explanation:

If you just put the numbers in order (1, 2, 7, 13, 14, 17, 18, 18, 20) then look for the 5th number (because there are 9 numbers total) you will get 14 as the median.

Ivan3 years ago
5 0

Answer:

14

Step-by-step explanation:

median is the number in the very middle when the numbers are organized in order:

1, 2, 7, 13, 14, 17, 18, 18, 20

if we start taking away from both ends we’ll get the answer

2, 7, 13, 14, 17, 18, 18

7, 13, 14, 17, 18

13, 14, 17

14

You might be interested in
Which method would you use to prove that the two triangles are congruent?
Alona [7]

Answer:- AAS postulate


Explanation:-

  • AAS postulate tells that if two angles and a non-included side of a triangle to equal to the two angles and a non-included side of another triangle then the two triangles are said to be congruent.

Given:- One angle and one side of a triangle is equal to the one angle and one side of the other triangle.

We see there is one more pair of equal angles as they are vertically opposite angles . [See the attachment]

⇒ there is a triangle where two angles and a non-included side of a triangle to equal to the two angles and a non-included side of another triangle then the two triangles are said to be congruent.

⇒ The triangles are congruent [ by ASA postulate]


6 0
3 years ago
This shape is made using three semicircles The smaller semicircle have diameters of 10cm Calculate the shaded area Take 3.142 an
AleksandrR [38]

Answer:

The shaded area is 314.2 cm²

Step-by-step explanation:

Here we note that the shape consists of two small circles and one larger circle

The diameter of the larger semicircle is subtended by the two smaller semicircles, the small semicircle closer to the left of the internal circumference of the larger semicircle is shaded one while the one on the right is without color,

Therefore,

Diameter of larger semicircle = 2 × 10 = 20 cm

Based on the diagram, the shaded area is observed to be;

Shaded area = Area of semicircle formed by larger diameter or 20 cm + Area area formed by the small semicircle close to the right of the internal circumference of the larger semicircle - Area area formed by the other smaller semicircle

Since the diameter and therefore the areas of the two small semicircles are equal, we have;

Shaded area = Area formed by the complete larger semicircle = Area of semicircle formed by larger diameter or 20 cm

∴ Shaded area = π·D²/4 = π×20²/4 = 100×3.142 cm² = 314.2 cm².

6 0
2 years ago
1) Suzanne will pay $14 to get her hair cut. She wants to leave the hairdresser a 15% tip. What is the total cost of the haircut
Kryger [21]

Answer:

$16.10

Step-by-step explanation

14.00x .15=2.10

14.00+2.10=16.10

7 0
3 years ago
Find the length of side a.<br> 5<br> 3<br> O A. 16<br> O B. 34<br> O c. 2<br> O D. 4
xxMikexx [17]

Answer:

D

Step-by-step explanation:

a=\sqrt{c^{2} -b^{2} }

\sqrt{5^{2} -3^{2} } =4

a=4

5 0
2 years ago
A study has indicated that the sample size necessary to estimate the average electricity use by residential customers of a large
Zanzabum

Answer:

\sigma=547.1125

Step-by-step explanation:

-The margin of error is calculated using the formula:

ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\

-We substitute the values, n=900 and ME=30 in the formula to solve for standard deviation:

ME=z_{\alpha/2}\times \frac{\sigma}{\sqrt{n}}\\\\\\30=1.645\times\frac{\sigma}{\sqrt{900}}\\\\\sigma=\frac{30^2}{1.645}\\\\=547.1125

Hence, the population standard deviation is 547.1125

7 0
3 years ago
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