what is the inverse of function f. f(x)=1/3-1/21x

Answers

Answer 1

Answer:

f^-1 (x) = -21x + 7 is your answer

Related Questions

How do I do this?
Im stuck on what to do

Answers

CD and DE are equal distance so their equations are equal:
2x+7 = 4(x-3)
2x+7 = 4x-12
Subtract 2x from both sides
7 = 2x-12
Add 12 to both sides
19 = 2x
9.5 = x
Now that u have x just plug it into the equation for DE
4(9.5-3)
38-12
26 is the answer

Which of the following equations is equivalent to 3x + 4y = 15?

Answers

Letter A is the answer because
4y = 15 - 3x
so y = 15/4 -3x/4

The equivalent expression of 3x + 4y = 15 is y = 15/4 - 3x/4 so option (A) will be correct.

What is the equation?

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

In another word, the equation must be constrained with some constraints.

Given the expression,

3x + 4y = 15

4y = 15 -3x

y = 15/4 - 3x/4

Hence "The equivalent expression of 3x + 4y = 15 is y = 15/4 - 3x/4".

For more about the equation,

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3. Find the value of the expression below: *
4
(1)

Answers

Answer:

Step-by-step explanation:

the 4(1) is just multiplication, it is the same as this=4x1. hopefully you know anything x1 is just the same number...

Im not sure what you mean by the * tho. I know that that also means multiplication, but there is no number. (also, remeber=

grouping symbols

exponents

mult/div

sub/add

hope this helps!

If sin Ѳ = cos 40, find the value Ѳ

Answers

Answer:

Θ = 50°

Step-by-step explanation:

Using the cofunction identity

cosx = sin(90 - x)

Given

cos40° = sin(90 - 40)° = sin50° ⇒ Θ = 50°

Answer:

Ѳ = 50

Step-by-step explanation:

Sin Ѳ = cos 40

[tex]Ѳ = \sin ^{ - 1} ( \cos(40) ) [/tex]

Simplify

[tex]Ѳ = sin^{ - 1} (0.7660444431) \\Ѳ = 50[/tex]

MATH PLS HELP
1. [02.03]
Solve for x: -5|x + 1| = 10 (1 point)
O x = 0
O x= -3 and x = 1
O x = -1 and x = 3
O No solution

Answers

I know that x=-3. So probably that second choice.

Find the area of the trapezoid by decomposing it into other shapes. A) 48 cm2 B) 55 cm2 C) 66 cm2 D) 96 cm2

Answers

Answer:

The answer is B.

Step-by-step explanation:

You have to use area of trapezoid formula, A = 1/2×(a+b)×h where a, b are the side lengths and h is height :

[tex]area = \frac{1}{2} \times (a + b) \times h[/tex]

[tex]let \: a = 6,b = 16,h = 5[/tex]

[tex]area = \frac{1}{2} \times (6 + 16) \times 5[/tex]

[tex]area = \frac{1}{2} \times 22 \times 5[/tex]

[tex]area = 11 \times 5[/tex]

[tex]area = 55 \: {cm}^{2} [/tex]

ANSWER QUESTION 7 PLEASE

Answers

Answer:Its F

Step-by-step explanation:

Answer:

Letter i

Step-by-step explanation:

BeCuAsE A rAtIoNaL NuMbEr Is A NuMbEr ThAt CaN Be MaDe InTo A FrAcTiOn AnD I CaNt Be MaDe InTo A FrAcTiOn.

1 point
9) A.SSE.3a: Which factorization can be used to reveal the zeros of the
function below?
f (n) = -12n? – 11n + 15
f (n) = -n(12n + 11) + 15
f (n) = (-4n+ 3) (3n + 5)
f(n) = -(4n + 3) (3n + 5)
f(n) = (4n + 3)(-3n+ 5)

Answers

Answer:

Ste = -12n? – 11n + 15

f (n) = -n(12n + 11) + 15

f (n) = (-4n+ 3) (3n + 5)

f(n) = -(4n + 3) (3n + 5)