Factorise the 5
5m + 5n = 5(m+n)
Answer:
6240 bushels
Step-by-step explanation:
You first find the area of the trapezoid. the formula is A= h(base 1+ base 2)/2
you will get 19968.235 as the area.
then you divide the area by 3.2 and round the answer to the nearest whole number and that is your answer.
Answer:
Quota sampling
Step-by-step explanation:
Quota sampling is a type of sampling method in which a representative data is collected from a group. It is a non probability based sampling method, a type of stratified sampling. Quota sampling is required when researchers are working with limited time and are without a sampling frame. Quota sampling method helps to determine the characteristics of a subgroup under research. It is an highly accurate method of sampling.
let h= history books
science books = s
h=2s there are 2 times as many history as science so to get them equal we double the science
h+s=81 there are 81 total history and science books
2s+s=81 substitute 2s for h in the above equation
3s = 81 combine like terms
s = 27
There are 27 science books
h=2s
h=2(27)
h=54
there are 54 history books
The statement that correctly describes a property of white light is that it b) contains different wavelengths of visible light.
When white light strikes any object that reflects any wavelength of visible light, that object appears to be the color that it reflects.
