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il63 [147K]
3 years ago
10

Does anybody now Mean, mode,Range,ext? ASAP NEED HELP!!!!!!!!!

Mathematics
1 answer:
Sav [38]2 years ago
5 0
<span>The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.
- </span>(13 + 18 + 13 + 14 + 13 + 16 + 14 + 21 + 13) ÷ 9 = 15<span>The "median" is the "middle" value in the list of numbers.
- </span>13, 13, 13, 13, 14, 14, 16, 18, 21...
So the median would be 14.<span>The "mode" is the value that occurs most often. If no number is repeated, then there is no mode for the list.
- So the mode would be 13 
</span>The "range" is just the difference between the largest and smallest values.
-    21-13= 8

I hope this helps you.
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timama [110]

Answer:

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Step-by-step explanation:

we just need to do the step slope=(y2-y1)/(x2-x1)

so slope =-30-(-54)/(7-11)=24/-4=-6

5 0
3 years ago
which of the following is a solution of 2cos^2x-cost-1=0 a. 0 degrees b. 150 degrees c. 180 degrees d. 210 degrees
Luba_88 [7]

Answer:

{0, 150} degrees

Step-by-step explanation:

Given 2cos^2x-cost-1=0, let's simplify this problem by temporarily replacing cos x with y:

2y^2 - y -1 = 0

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Remembering that we let y = cos x, we now solve:

cos x = -1/2 and cos x = 1.

Note that cos x = 1 when x = 0 and the "adjacent side" coincides with the hypotenuse.

cos x = -1/2 when the hypotenuse is 2 and the "adjacent side" is -1.  This has two solutions between 0 and 360 degrees:  150 degrees and  270 degrees.

Four answer choices are given.  Both (a) (0 degrees) and (b) (150 degrees) satisfy the original equation.  Thus, the solution set is {0, 150} (degrees).

3 0
3 years ago
What is the volume of a sphere with a diameter of 9.9 cm, rounded to the nearest
777dan777 [17]

Answer:

the volume of the sphere is 507.78981 cm^3

Step-by-step explanation:

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Given that

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Here r denotes the radius

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nevsk [136]

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