Answer: (B) Systematic
Step-by-step explanation:
(A) Random : In this researcher randomly selects individual from population to make sample.
(B) Systematic : It is a kind of random sampling method where researcher decide the starting point to select individual , then follow a systematic pattern to select them.
(C) Stratified : It is a kind of random sampling method where researcher divides the population into groups ( on the basis of characteristics) called as strata , then selects individuals from each strata.
(D) Cluster : It is a kind of random sampling method where researcher divides the population into groups known as clusters , then randomly selects clusters to include in sample.
(E) Simple random : It is a kind of random sampling method where researcher randomly selects individual from population to make sample.
Since , a random number is generated to determine a starting position in the list and then every tenth attendee is placed in the sample.
That means sponsors follow as systematic pattern.
Therefore , the methods was used to select the probability sample : (B) Systematic
Answer:D or C
Step-by-step explanation:
Since the triangles are similar, then 32 = x+7 those two angles are too
solve for "x"
now using proportions
![\bf \cfrac{\textit{small triangle}}{\textit{large triangle}}\qquad \cfrac{JK}{18}=\cfrac{12}{12+10}](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B%5Ctextit%7Bsmall%20triangle%7D%7D%7B%5Ctextit%7Blarge%20triangle%7D%7D%5Cqquad%20%5Ccfrac%7BJK%7D%7B18%7D%3D%5Ccfrac%7B12%7D%7B12%2B10%7D)
solve for JK
![\bf \cfrac{\textit{small triangle}}{\textit{large triangle}}\qquad \cfrac{12}{12+10}=\cfrac{9}{9+KG}\implies 12(9+KG)=(22)9 \\\\\\ 108+9KG=198](https://tex.z-dn.net/?f=%5Cbf%20%5Ccfrac%7B%5Ctextit%7Bsmall%20triangle%7D%7D%7B%5Ctextit%7Blarge%20triangle%7D%7D%5Cqquad%20%5Ccfrac%7B12%7D%7B12%2B10%7D%3D%5Ccfrac%7B9%7D%7B9%2BKG%7D%5Cimplies%2012%289%2BKG%29%3D%2822%299%0A%5C%5C%5C%5C%5C%5C%0A108%2B9KG%3D198)
solve for KG
the scale factor of the perimeter of both triangles is just the same as the ratio of the sides, or
Answer:
what the product of 2 and 3
Answer:
322 ft²
Step-by-step explanation:
Trapezoid area formula:
![A=\frac{a+b}{2} *h](https://tex.z-dn.net/?f=A%3D%5Cfrac%7Ba%2Bb%7D%7B2%7D%20%2Ah)
Given:
a = 11
b = 35
h = 14
Work:
![A=\frac{a+b}{2} *h\\\\A=\frac{11+35}{2} *14\\\\A=\frac{46}{2} *14\\\\A=23*14\\A=322](https://tex.z-dn.net/?f=A%3D%5Cfrac%7Ba%2Bb%7D%7B2%7D%20%2Ah%5C%5C%5C%5CA%3D%5Cfrac%7B11%2B35%7D%7B2%7D%20%2A14%5C%5C%5C%5CA%3D%5Cfrac%7B46%7D%7B2%7D%20%2A14%5C%5C%5C%5CA%3D23%2A14%5C%5CA%3D322)