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pantera1 [17]
3 years ago
10

What is the answer for this question find (f+g)(x) if f(x)=2x-6 and g(x)=3x+9

Mathematics
1 answer:
anastassius [24]3 years ago
5 0
The answer is B.

2x-6+(3x+9)=2x-6+3x+9
combine alike terms
answer: 5x+3
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Which of the following choices is the simple formula for the nth term of the following arithmetic sequence?
kkurt [141]
\bf 7~~,~~\stackrel{7-4}{3}~~,~~\stackrel{3-4}{-1}~~,~~\stackrel{-1-4}{-5}~~,~~\stackrel{-5-4}{-9}~~,~~...

so namely, the "common difference" d = -4, and the first term a₁ = 7.

\bf n^{th}\textit{ term of an arithmetic sequence}
\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
d=-4\\
a_1=7
\end{cases}
\\\\\\
a_n=7+(n-1)(-4)\implies a_n=7+(4-4n)
\\\\\\
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8 0
3 years ago
If y varies directly as x and y=60 when x=12, find y if x=35
Drupady [299]

Answer: y=175

Step-by-step explanation: y&x

y=kx

(Where k is a constant)

When y=60,x=12...we have

60=12k

Divide both side by 12

12k/12=60/12

k=5

Equation becomes y=5k

Finding y when x=35

y=5(35)

y=175

3 0
3 years ago
Read 2 more answers
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