Answer:
ok dhufybggoe7sggeu8r7e
Step-by-step explanation: omg fydvrhuguysegegg7e8se is actdgyhuy ting syfdpuo cjzivs8r8hhy9ahesyehu8y7es8eseyhues
Since we need to find the number of ways they could enter first, second and third place, (I can't demonstrate, but you should get the idea) take 8, 7 and 6 and multiply them, 5-1 we don't need, we just need 8, 7, and 6, multiply those three numbers and you get 336, there you go, 336 ways to organize all 8 girls in first, second and third place, hope this helps
We start off with 21 as the first term. So a1 = 21
The common difference is d = -3 because we subtract 3 each time to get from one term to the other (eg: 21 to 18 is minus 3)
The nth term of an arithmetic sequence is found by using this formula
an = a1 + d(n-1)
let's plug in the values we have so far to get
<span>an = 21 + (-3)(n-1)
</span>an = 21 - 3(n-1)
an = 21-3n+3
an = -3n+24
Why do this? Well it's helpful so we can find any term in the formula we want. In this case, we want the 40th term. So just plug in n = 40 from here and you're done
<span>an = -3n+24
</span><span>a40 = -3*40+24
</span>a40 = -96
pointing you to the answer of choice B) -96
<span>A standard normal distribution is a normal distribution that has a mean of 0 and standard deviation of 1. A z value of 0.00 divides the standard normal distribution into two equal halves with 50% on each side.</span>