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3 years ago

If f(x) =3x+12 find f(-6)

Mathematics

1 answer:

serious [3.7K]3 years ago

5 0

The answer is -6. hope this helps

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Please help!!! 3(x – 10) = -9

sergey [27]

Answer:

The answer is x = 7

Step-by-step explanation:

Divide each term by 3 and simplify. Move all terms not containing x to the right side of the equation.

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3 years ago

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BARSIC [14]

Answer:

y =mx

Step-by-step explanation:

The second one is for the gradient

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2 years ago

System of Equations y=-x-1 y+x=3 Solve?

ozzi

Solve by substitution

$\sf{y=-x-1}$
$\sf{y+x=3}$

Just plug in y=-x-1 into y+x=3

So we get:

$\sf{(-x-1)+x=3}$

Simplify that:

$\sf{-1=3}$

And since that is not true, that means this system of equations has no solutions!

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3 years ago

CAn someone help me with thiss???

sashaice [31]

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3 years ago

Find the number c that satisfies the conclusion of the Mean Value Theorem on the given interval. (Enter your answers as a comma-

Shtirlitz [24]

Answer:

The number c is 2.

Step-by-step explanation:

Mean Value Theorem:

If f is a continuous function in a bounded interval [0,4], there is at least one value of c in (a,b) for which:

$f(c) = \frac{1}{b-a}\int\limits^a_b {f(x)} \, dx$

In this problem, we have that:

$f(x) = x, a = 0, b = 4$

So $f(c) = c$

----------

$f(c) = \frac{1}{b-a}\int\limits^a_b {f(x)} \, dx$

$c = \frac{1}{4-0}\int\limits^0_4 {x} \, dx$

$c = \frac{1}{4-0}*8$

$c = 2$

The number c is 2.

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3 years ago