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hichkok12 [17]
3 years ago
9

3(2x+1)=21 Solve this multi-step equation using the distributive property

Mathematics
1 answer:
Tasya [4]3 years ago
7 0
3 (2x + 1) = 21
6x + 3= 21
-3 -3
6x = 18

Divide each side by 6, and x equals 3.

3 (2(3) + 1) = 21
3 (6 + 1) = 21
18 + 3 = 21


Hope this helps! Can I please have brainliest so I can level up? Thank you!
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Normal probability distribution

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In this question, we have that:

\mu = 197.5, \sigma = 8.3

a. Find the probability that an individual distance is greater than 210.9 cm

This is 1 subtracted by the pvalue of Z when X = 210.9. So

Z = \frac{X - \mu}{\sigma}

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Z = 1.61

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