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Lena [83]
3 years ago
6

What is the variance of the values 8,10,14,12?

Mathematics
1 answer:
svetoff [14.1K]3 years ago
3 0
The mean of the numbers is 11 now all you have to do is take 11 and subtract it from the squared difference. 
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Brand Y Cola sponsors a survey of 15,559 residents of Texas to determine which brand of cola they prefer. Forty percent say they
Triss [41]

Answer:

6224 Brand X residents and 9335 Brand Y residents

Step-by-step explanation:

Total number of residents in the survey=15559

Residents that prefer Brand X=40%

Residents that prefer Brand Y=60%

<u>Population sample?</u>

Residents that prefer Brand X= 40/100 ×15559 =6223.6⇒6224 residents

Residents that prefer Brand Y= 60/100 × 15559 =9335.4⇒⇒9335 residents

3 0
3 years ago
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Is the decimal form of 13/3 a rational number
ludmilkaskok [199]
No Its not Rational Number
8 0
3 years ago
HURRY PLS HELP ILL GIVE BRAINLYEST Subtract.
natka813 [3]

Answer:

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Step-by-step explanation:

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6 0
2 years ago
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Please help and thank you
Ksivusya [100]

Answers: Angle A is 36 degrees, angle C is 54 degrees

=================================================================

Work Shown:

The angles A and C are complementary, meaning they add to 90 degrees.

(Angle A) + (Angle C) = 90

(2x-4) + (2x+14) = 90

(2x+2x)+(-4+14) = 90

4x+10 = 90

4x+10-10 = 90-10 .... subtract 10 from both sides

4x = 80

4x/4 = 80/4 ..... divide both sides by 4

x = 20

If x = 20, then,

angle A = 2x-4 = 2*20-4 = 40-4 = 36 degrees

angle C = 2x+14 = 2*20+14 = 40+14 = 54 degrees

Note how A+C = 36+54 = 90 which helps confirm our answers.

8 0
3 years ago
In the picture below, which segment is parallel to AD
Roman55 [17]

Answer:

BC

Step-by-step explanation:

because they never intersect each other

7 0
2 years ago
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