Thank you, you’ll motivate me to work out :)
Answer: 21
Step-by-step explanation: This is a combination of 7 objects taken 5 at a time
nCr = n! / r! * (n - r)!
7C5 = 7! / (5! (7-5)!)
= 7! /(5! 2!)
= (7*6*5*4*3*2*1)
-----------------------
5*4*3*2*1 * 2*1
Canceling
= 7*6/ (2*1)
= 21
Answer:
Choose exponential growth
Step-by-step explanation:
1 Use Product Rule: <span>{x}^{a}{x}^{b}={x}^{a+b}<span><span>x<span><span>a</span><span></span></span></span><span>x<span><span>b</span><span></span></span></span>=<span>x<span><span><span>a+b</span></span><span></span></span></span></span></span>
<span>{n}^{2+2}<span>n<span><span><span>2+2</span></span><span></span></span></span></span>
2 Simplify <span>2+2<span>2+2</span></span> to <span>44</span>
<span><span>{n}^{4}
<span>answer is n<span><span>4</span><span></span></span></span></span><span>
</span></span>
Another way of asking this question would be... "20 is 80 percent of what number"?
80/100 = 20/x
reduce to lowest terms...
4/5 = 20/x
this makes it a little easier to figure out...
Divide 20 by 4, then multiply by 5 to get 25. There were 25 questions on Victoria’s test!
