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3 years ago

Let f(x)=3x-4 and g(x)10-x.what is f+g and what is it’s domain?

Mathematics

1 answer:

meriva3 years ago

6 0

Answer:

2x + 6

Domain: All real numbers

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 4

g(x) = 10 - x

Step 2: Find f(x) + g(x)

3x - 4 + 10 - x

2x + 6

Step 3: Domain

Since we can plug in any number <em>x</em>, the domain is all real numbers.

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gulaghasi [49]

Answer:

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Step-by-step explanation:

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3 years ago

Prove that

Dovator [93]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

secx = $\frac{1}{cosx}$ , cosecx = $\frac{1}{sinx}$

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Consider the left side

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5 0

3 years ago

8x + 5y = 22<br> -8x + y = 14

finlep [7]

Answer:

Y = 6 X=-1

Step-by-step explanation:

Add the numbers 8x+-8x=0. 5y+y=6y. 22+14=36
So that means 6y=36. So Y would equal 6
Substitute the values it one of the original equations. 8x + 5(6) =22. 8x+30=22
Minus 22 from both sides.
That would give you 8x=-8
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3 years ago

Read 2 more answers

Six copies of the sum of nine fifths and three

fgiga [73]

Answer: What is the complete question? Can you comment it?

Step-by-step explanation: I can’t help unless I know what the full question is. Sorry.

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3 years ago

Which ordered pair is a solution to the system of linear equations Y= -7x+2 and y=9x-1

evablogger [386]

$\left\{\begin{array}{ccc}y=-7x+2\\y=9x-1\end{array}\right\Rightarrow 9x-1=-7x+2\\\\9x-1=-7x+2\ \ \ |+1\\9x=-7x+3\ \ \ |+7x\\16x=3\ \ \ \ |:16\\x=\dfrac{3}{16}\\\\\text{substitute the value of x to the second equation}\\\\y=9\cdot\dfrac{3}{16}-1\\\\y=\dfrac{27}{16}-\dfrac{16}{16}\\\\y=\dfrac{11}{16}\\\\\text{The solution is}\ \left(\dfrac{3}{16};\ \dfrac{11}{16}\right)$

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4 years ago