E Question 22/25
Oy
<
> NEXT
BOOKMARK
Q
22
Concrete will be poured into a form in the shape of a rectangular prism to make a patio.
The measurements of the dimensions of the form are shown in the table below.
How many cubic yards of concrete are needed to fill the form?
Dimension Measurement
Length
10 feet
Width
8 feet
Height
6 inches
Write your answer as a fraction.
cubic yards

question a is the correct answer

Step-by-step explanation:

because i know

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."