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mihalych1998 [28]

3 years ago

7

PLZZ HELPP ILL GIVE BRAINLIST

2 answers:

Sonja [21]3 years ago

7 0

Answer:

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<

<

=

<

Step-by-step explanation:

dedylja [7]3 years ago

4 0

Answer:

Step-by-step explanation:

1) >

2) <

3) <

4) =

5) <

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Igoryamba

6 goes in to 906 151 times

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2y + x + 7 = 0<br> how do i solve with substitution?

Jlenok [28]

Answer:

x+2y=-7

Step-by-step explanation:

2y + x =-7

x+2y=-7

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If g(x)= -3x+10, what is g(-5)?

Vikentia [17]

Answer:

g(-5) = -5

Step-by-step explanation:

You replace x with -5.

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2 years ago

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Given f(x)=-1/7√16-x^2 find f^-1(x)

Vera_Pavlovna [14]

Answer:

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

Not a function.

Step-by-step explanation:

The given function is;

$f(x)=-\frac{1}{7}\sqrt{16-x^2}$

Let $y=-\frac{1}{7}\sqrt{16-x^2}$

Interchange x and y;

$x=-\frac{1}{7}\sqrt{16-y^2}$

Solve for y;

$-7x=\sqrt{16-y^2}$

Square both sides

$(-7x)^2=(\sqrt{16-y^2})^2$

$49x^2^2=16-y^2$

$49x^2^2-16=y^2$

$y=\pm \sqrt{49x^2-16}$

The inverse is

$f^{-1}(x)=\pm \sqrt{49x^2-16}$

$f^{-1}(x)=\pm \sqrt{49x^2-16}$ is not a function because one x-value maps onto to different y-values.

6 0

3 years ago