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icang [17]
2 years ago
9

I will mark brainlist

Mathematics
2 answers:
Talja [164]2 years ago
7 0
Right (don’t mind this lol)
blagie [28]2 years ago
3 0

Answer:

A Obtuse, B Acute, C Right        I think its right

Step-by-step explanation:

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Find the population variance of: 4 6 8 9 9 <br><br> round to the nearest hundredth
soldi70 [24.7K]

Answer:

Step-by-step explanation:

To find the population variance, we first need the mean:

\bar{x}=\frac{4+6+8+9+9}{5}=\frac{36}{5}=7.2 so the mean is 7.2. To find the population variance (which is almost exactly the same as the sample variance except for a small difference in the denominators of the formula) we have to take each number minus the mean, and then square the difference. Add together all these squared numbers and then divide by the number of numbers. Like this:

(4-7.2)^2=10.24\\(6-7.2)^2=1.44\\(8-7.2)^2=.64\\(9-7.2)^2=3.24\\(9-7.2)^2=3.24

Add together those numbers and divide them by 5:

\sigma=\frac{10.24+1.44+.64+3.24+3.24}{5}=\frac{18.8}{5}=3.76

5 0
2 years ago
Can someone please help ty!
AVprozaik [17]

Answer:

function

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve the equation, and check your solution.<br> -3/5n = -9
jasenka [17]

Answer:

-15 = n

Step-by-step explanation:

5 0
3 years ago
Solve the equation :<br>-3 • ( 2 - x ) + 4 = 2 • ( 1 - 2x) + 3<br>thanks :) ​
kakasveta [241]

Isolate the variable by dividing each side by factors that don't contain the variable.

x  =  1

-6+3x+4=2-4x+3

-8+7x+1=0

7x=7

x=1

4 0
2 years ago
Geometry, please answer question ASAP
Aleonysh [2.5K]

Answer:

A

Step-by-step explanation:

The inscribed angle IJK is half the measure of its intercepted arc, so

arc IK = 2 × 75° = 150°

The 3 arcs sum to  360° , then

arc IJ = 360° - (150 + 110)° = 360° - 260° = 100° → A

8 0
2 years ago
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