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2 years ago

Using the given set of numbers find the mean (rounded to the nearest tenth), median,mode and range: 18,19,16,18,14,17,18 and 15

Mathematics

2 answers:

sashaice [31]2 years ago

8 0

Answer:

Mean = 16.9
Mode = 18
Median = 17.5

Step-by-step explanation:

Given data:

18, 19, 16, 18, 14, 17, 18, 15

The data in the ascending order:

14, 15, 16, 17, 18, 18, 18, 19

The mean:

(14 + 15 + 16 + 17 + 18*3 + 19)/8 = 16.9 (rounded)

The median:

(17 + 18)/2 = 17.5 (the average of middle terms)

The mode:

18 (the most repeated number)

Mice21 [21]2 years ago

6 0

Answer:

Mean = 16.9

Mode = 18

Median = 17.5

Step-by-step explanation:

<h2>PLEASE MARK AS BRAINLIEST!!!!!</h2>

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If the sum of the measures of the interior angles of a polygon is 1920°, how many sides does it have? math

Inessa05 [86]

Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

Step-by-step explanation:

The sum of the measures of interior angles of a polygon with $n$ sides is given by:-

$(n-2)\times180^{\circ}$

Given: The sum of the measures of the interior angles of a polygon is 1920°.

i.e. $(n-2)\times180^{\circ}=1920^{\circ}$

$n-2=\dfrac{1920}{180}\\\\ n= \dfrac{1920}{180}+2\\\\ n=\dfrac{2280}{180}=12.67$

But number of sides cannot be in decimal.

Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

7 0

3 years ago

1. You are standing on top of a ridge using a clinometer trying to figure out how far your dog has wandered off in

olga_2 [115]

Given:

It is given that the ridge is 360 inches tall.

Assumptions:

Assume you are 170.1 cm tall which equals 67 inches tall, the height from your eye to the floor is $360+67 = 427$ inches.

The distance from your eye level to the bottom of the ridge is 427 inches.

Assume the angle A is 60°.

To find the distance from you to your dog.

Solution:

A right-angled triangle can be formed where the angle is 60°, the distance between you and the dog is the hypotenuse of the triangle and your height from the floor is the adjacent side of the triangle.

Assume the hypotenuse of the triangle measures x inches.

To determine the length of the hypotenuse, we determine the cos of the angle.

$cos \theta = \frac{adjacent side}{hypotenuse} .$

$cos A = \frac{427}{x} , x = \frac{427}{cos60} , cos60=0.5.$

$x=\frac{427}{0.5} = 854.$

So if the ridge is 360 inches tall and you are 67 inches tall and the angle A is 60°, the distance between your dog and you is 854 inches.

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3 years ago

PLSSSS MARKING BRAINLIST QUESTION BELOW

sineoko [7]

Answer:

Step-by-step explanation:

The question states that Car A after two hours is at 95. We can represent this as (2, 95). We know the slope is 40, which means we can find the y intercept of Car A using point slope form: y = 40(x - 2) + 95. y = 40x + 15. This means that Car B is 5 miles east of car a, as the Y intercept of Car B is 5 greater.

5 0

3 years ago

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Ben bought a digital camera for $90. The tax rate is 6%. What is the total amount Ben paid for the digital camera?

Otrada [13]

I'm pretty sure it would be 95.40. Because 90 x 6%= 5.40 add that to 90

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3 years ago

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Which of the following is the function T(a) if T^-1(a)=11a-2

SpyIntel [72]

Answer:

T(a) =(a+2)/11

Step-by-step explanation:

The inverse of the inverse is the function

To find the inverse let T^-1(a) be y

y = 11a -2

Exchange y and a

a = 11y -2

Solve for y

Add 2 to each side

a+2 = 11y -2 +2

a+2 =11y

Divide each side by 11

(a+2)/11 =y

T(a) =(a+2)/11

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4 years ago