Answer:
n = 6
Step-by-step explanation:
Given the expression
Hence the value of n is 6
From the pool of 5 letters, we're picking 4. We can arrange the 4 we picked in
ways.
But there are 5 ways of *not* picking the remaining letter. To account for the arrangements containing the letter not picked, we multiply this total by 5.
Put another way, suppose we drew a, b, c, and d, but not e. We have 24 possible arrangements for these 4 letters, but for any distinct arrangement there are 5 ways of replacing any letter with e.
So the number of arrangements we can actually make is
.
The answer is 4.5.
The formula for a rectangle is A = lw. Substitute the formula, so it'll be 27 = (2x - 3) * x. Evaluate the formula.
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Here’s how you can set up the problem:
10 + 25d = 40 + 10d
(d means pages per days)
15d = 30
D = 2
So, the answer would be two days. You can check this by plugging it into the problem:
10 + 25(2) = 40 + 10(2)
10 + 50 = 40 + 20
60 = 60; correct!
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Answer: D.
Biologists attempt to answer questions about the living world.
Step-by-step explanation:
A biologist is a scientist devoted to and producing results in biology through the study of life. Therefor, Biologists would usually attempt to answer questions about the living world.
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