3 years ago

Find the area. Simplify your answer.

1 answer:

3 0

Area of a rectangle equals length times width
2x *3x

First you multiply the numbers
2*3=6

Then you multiply the variable
x*x=x^2

Area =6x^2

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What is the inverse of the function of (x)=2^(x)+6

Elden [556K]

Answer:

Option D.

Step-by-step explanation:

To find the inversion of a function follow the following procedure

1) Replace x with y in the function and clear y

$y=2^{(x)} + 6$ ------> $x = 2^{(y)}+ 6$

$x-6 = 2^y$

$y = log_2(x-6)$

2) Check. The range of f(x) is the domain of $f^{-1}(x)$ .

So if f(a) = b, this means that $f^{-1}(b)$ = a.

$f(2) = 2^2+ 6 = 10$

$f^{-1}(x) = log_2(10-6) = 2$

Is fulfilled. Therefore $y=log_2(x-6)$ is the inverse of $f(x) = 2^{(x)} +6$

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3 years ago

−2x(x+5) for x=−3<br> Idk what this mean plz help

LenKa [72]

-2(3)(x+5)
-6(x+5)
-6x+5
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6 0

3 years ago

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Are these good notes on math?

Archy [21]

Answer:

yes

Step-by-step explanation:

it sounds good to me

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3 years ago

The perimeter of a rectangle is 64cm. Its shortest side has a length of 3cm. State the length of the longest side.

wel

Answer:

Step-by-step explanation:

P = 2l + 2w

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58/2 = w

=29

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3 years ago

Whats is the slope of (-5,-2) (8,13)

Marta_Voda [28]

Answer:

Slope = 15/13

Step-by-step explanation:

(13 - - 2)/(8 - - 5) = 15/13

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