Answer:
1. correct
2. incorrect
3.correct
plz don't dis me if I didn't get it right lol
Answer:
The answer is C.)
Step-by-step explanation:
Answer:
8855
Step-by-step explanation:
Data provided in the question:
Number of graduate candidates to be interviewed = 23
Number of positions open = 4
Now,
Number of groups that company can select = ![^nC_r](https://tex.z-dn.net/?f=%5EnC_r)
here,
n = total number of available choices = 23
r = number of individuals to be selected out of the given choices = 4
Thus,
Number of groups that company can select = ²³C₄
= ![\frac{23!}{4!(23-4)!}](https://tex.z-dn.net/?f=%5Cfrac%7B23%21%7D%7B4%21%2823-4%29%21%7D)
= ![\frac{23\times22\times21\times20\times19!}{4\times3\times2\times1\times19!}](https://tex.z-dn.net/?f=%5Cfrac%7B23%5Ctimes22%5Ctimes21%5Ctimes20%5Ctimes19%21%7D%7B4%5Ctimes3%5Ctimes2%5Ctimes1%5Ctimes19%21%7D)
= 8855
Answer:
A) 300 cm2
Step-by-step explanation:
First you have to find height
use Pythagorean theorem: a2 + b2 = c2
![h^{2}+ 8^{2} = 17^{2}](https://tex.z-dn.net/?f=h%5E%7B2%7D%2B%208%5E%7B2%7D%20%3D%2017%5E%7B2%7D)
h2 + 64 =289
h2 = 289-64
h2 = 225
h= 15
now the area
A = a * h
A = 20 * 15
A = 300 cm2
The answer choice should be D