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Leni [432]
3 years ago
13

Pretty please help!(:

Mathematics
2 answers:
ehidna [41]3 years ago
8 0

Well folks this ain’t it either. Keep on chugging.

aliya0001 [1]3 years ago
7 0
I believe the answer is C
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Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations.
ki77a [65]

Answer:

The variance is  \sigma ^2  =25

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  21

     The sum of squares is SS =  500

Generally the variance is mathematically represented as

           \sigma ^2  = \frac{SS}{n- 1}

substituting values

          \sigma ^2  = \frac{ 500}{21- 1}

          \sigma ^2  =25

   

4 0
3 years ago
I need helppp what is the blue line called in the circle??
andrezito [222]

Answer: B: diameter

Step-by-step explanation:

The blue line the goes across the shape is called the diameter

Hope this helps ;)

8 0
2 years ago
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Please help me with this! I got one answer, although I am not sure if it is correct. i think it wants 2 answers
elena-s [515]

Answer:

it wants you to factor/solve for 36a^4 b^10 -81a^18 B^20 using those strategies, so i believe you're already done.

Step-by-step explanation:

IM NOT A EXPERT THOUGH

5 0
2 years ago
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A method for finding the volume of any solid for which cross sections by parallel planes have equal area is called
lapo4ka [179]
The appropriate response is Caliveire's <span>Principle</span> It is a technique, with the recipe given beneath, of finding the volume of any strong for which cross-segments by parallel planes have measured up to ranges. This incorporates, yet is not constrained to, chambers and crystals.
7 0
3 years ago
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1 - (2n + 9) = 4(1-2)
Vikki [24]

Answer:

n=-2

Step-by-step explanation:

1−(2n+9)=4(1−2)

1+−1(2n+9)=4(1−2)

1+−1(2n)+(−1)(9)=4(1−2)

1+−2n+−9=4(1−2)

1+−2n+−9=−4

(−2n)+(1+−9)=−4

−2n+−8=−4

−2n−8=−4

−2n−8+8=−4+8

−2n=4

Divide both sides by -2

-2n/2=4/-2

n=-2

6 0
3 years ago
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