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vovikov84 [41]
3 years ago
15

How do u write function notation and what variable does function notation replace

Mathematics
1 answer:
gregori [183]3 years ago
7 0
If f(x) = 2x+1; Prove f(3+1) =f(3)+f(1)
Proof: 2(3+1)+1 = 2(3)+1 + 2(1)
6+2+1 = 6+1+2
9 = 9
<span>Therefore: f(3+1) =f(3)+f(1)

this is NOT the answer just a question i got on my test its a example</span>
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Expand this expression (x-y)²<br>​
pochemuha

Answer:

x^2 - 2xy + y^2.

Step-by-step explanation:

(x - y)^2

= (x - y)(x - y)

= x(x -y) - y(x - y)

= x^2 - xy - xy + y^2

= x^2 - 2xy + y^2.

8 0
3 years ago
A barrel of tomato sauce has spilled on a tile floor. The sauce flow can be expressed with the function r(t) = 2t, where t repre
IrinaVladis [17]
For the answer to the question above, I'll show my solution for the answer below.
Area A = pi r^2 
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<span>This gives </span>
<span>d A/ d t = 2 pi 2t 2 d t = 8 pi t dt </span>
<span>Integrate it </span>
<span>A= 4 pi t^2. </span>
<span>After t=5, the area will be 100* 3.14 square= 314 square units.</span>
3 0
3 years ago
Read 2 more answers
Explain how to find the area of an enlarged polygon if you know the area of the original polygon and the scale factor of the enl
julia-pushkina [17]
Yo just need to multiply  area to that scale factor,
5 0
3 years ago
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Which picture shows the correct graph of |x|=3?
suter [353]

Answer:

[see picture]

Step-by-step explanation:

There were no given choices, but I did graph the equation using Desmos.

Choose the answer that is closest to this:

8 0
3 years ago
Which ordered pair is a solution to this system of equations?y = x2 – 3x + 3 y = 3x – 6
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Assuming the first term in the first equation is actually x^2, then the ordered pair is C. (3, 3).
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