Answer:A
Step-by-step explanation:
There is a pattern where every two days the previous log is multiplied by three. If you divide 3 by 2 you get 1.5 this is the increase per one day so just multiply day 6 by 1.5 to get the answer for day 7.
X-y=7
y=3x+12|-3x
x-y=7
-3x+y=12
---------------------,-
-2x=19
x=-19/2
Answer:
Airplane A is the slowest
Step-by-step explanation:
Airplane A = 400 m/s
Airplane B = 760 m/s
Airplane C = 740 m/s
Hope this helps!
Notice that

That is, the <em>n</em>-th term (where <em>n</em> = -1, 0, 1, …, 9) in the sum on the left side has a partial fraction decomposition of

and in the sum, some adjacent terms will cancel and leave you with

Now solve for <em>x</em>, bearing in mind that we cannot have <em>x</em> = 0, -1, -2, …, -10 :

Combine the fractions on the left side:

Then we must have

so that either <em>x</em> = 2 or <em>x</em> = -11.
Answer:
A
Step-by-step explanation:
A function composition is where one function is substituted within another function and is written g(f(x)). Here we will substitute f(x) into g(x). For g(f(-7)), we substitute -7 for x.

Now substitute -7 for x.
