Answer:
x = 4
Step-by-step explanation:
1. 8x+1 = 33 and the 4x together
2. 8x = 32 subtract 1 from each side
3. x = 4 Divide both sides by 8
Step-by-step explanation:
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Answer:
x
=
±
√
21
Explanation:
To find
x
2
you have to find the square root of
21 x = ± √ 21 ≈ ± 4.5286
Step-by-step explanation:
Answer:
Standard deviation (S) = square root of the variance
Standard deviation is the measure of spread most commonly used in statistical practice when the mean is used to calculate central tendency. Thus, it measures spread around the mean
Step-by-step explanation: