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ryzh [129]
3 years ago
12

Solve this easy question that I don't understand

Mathematics
1 answer:
Setler [38]3 years ago
7 0

Answer:

It is C. and btw........... DON'T TRUST LINKS!!

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Q(a+1) - 2q(a) if q(x) = x²+3x+4​
siniylev [52]

q(x) =  {x}^{2} + 3x + 4

_________________________________

Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

q(a) =  {a}^{2} + 3a + 4

Multiply sides by -2 :

- 2q(a) =  - 2( {a}^{2} + 3a + 4)

- 2q(a) =  - 2 {a}^{2} - 6a - 8

_________________________________

Step (2)

To find q(a+1) we just need to put a+1 instead of x in q(x) function.

Let's do it...

q(a + 1) =  ({a + 1})^{2} + 3(a + 1) + 4 \\

q(a + 1) =  {a}^{2} + 2a + 1 + 3a + 3 + 4 \\

q(a + 1) =  {a}^{2} + 5a + 8

_________________________________

Step (3)

q(a + 1) - 2q(a) =

{a}^{2} + 5a + 8 - 2 {a}^{2} - 6a - 8 =  \\

-  {a}^{2} - a  =  - a(a + 1)

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

8 0
3 years ago
Find the measure of angle t
natima [27]

\huge \tt \color{pink}{A}\color{blue}{n}\color{red}{s}\color{green}{w}\color{grey}{e}\color{purple}{r }

\large\underline{  \boxed{ \sf{✰\:Important\: point's }}}

  • ➢Given two lines are intersecting lines
  • ➢ as it's clearly known when two or more lines meet each other at a specific points is said to be as intersecting lines nd they must be having a common point
  • ➢Here angle t and angle 120⁰ forms adjacent angles
  • and sum sum of adjacent angles is 180⁰

{ \rule{70mm}{2.9pt}}

\underline{  \boxed{ \sf{✵\: let's\: solve\:✵}}}

\sf ➛\angle \: 120 \degree + \angle \:t  = 180\degree \\   \sf ➛\angle  \:t = 180 \degree -   \angle \:120 \degree \\   \sf ➛\angle \: t =  \:60 \degree

{ \rule{70mm}{2.9pt}}

\boxed{✛\underline{  \boxed{ \sf{ \: \angle \: t = 60 \degree  \: }}}✛}

Hope it helps !

5 0
2 years ago
3. Find the circumference of a circle that has a diameter of 12. Round to the hundredths. *
mr Goodwill [35]
Answer:
B

I hope this could help you ^^
8 0
3 years ago
Which function is the inverse of f(x)=2x+3
MAXImum [283]

Answer:

f^{-1}(x)=\frac{x-3}{2}

Step-by-step explanation:

we have

f(x)=2x+3

Let

y=f(x)

y=2x+3

Exchanges the variables x for y and y for x

x=2y+3

Isolate the variable y

2y=x-3

y=\frac{x-3}{2}

Let

f^{-1}(x)=y

f^{-1}(x)=\frac{x-3}{2}

8 0
3 years ago
Read 2 more answers
Bryan earns 9$ for each hour of yard work how many hours in all will it take Bryan to earn 27$
Svetllana [295]

Answer:

3 hours

Step-by-step explanation:

7 0
3 years ago
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