Answer:
(3x-1)(x+1)
Step-by-step explanation:
3x^2 + 2x − 1= (2x=3x-x)
3x^2 +3x-x-1=
3x(x+1)-1(x+1)=
(x+1)(3x-1)
First, ask yourself how far way is 70 from the mean of 63.5? It is equal to 70 - 63.5 = 6.5 inches.
Next, ask yourself how many standard deviations is this? Well, every standard deviation equals 2.5 inches, so there are 6.5 / 2.5 = 2.6 standard deviations. So, 70 is exactly 2.6 standard deviations to the right of the mean.
Finally, you can use the Standard Normal to find the answer P(X>70) since this is equivalent to:
<span>P(z > 2.6) = 0.0054 or 0.54% of women will be taller than 70 inches.
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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Answer:
Either 17,576 or If you use Lowercase and Uppercase then 140,608
Step-by-step explanation:
26 * 26 * 26 = 17,576.
Or, if you allow both capital and lowercase letters and the passwords are case-sensitive:
52 * 52 * 52 = 140,608.