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3 years ago

Find the discriminant of each quadratic equation then state the number and type of solutions

Mathematics

1 answer:

wariber [46]3 years ago

3 0

N=3
Because 6+6=12
Hope this helps

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PLEASE HELP ASAP <br>are f(x)=4/x-2-1 and g(x)=3/x+2-2 inverses of each other?

GREYUIT [131]

Answer:

To find the inverse of:

$f (x)=\dfrac{4}{x-2}-1$

Set the function to y:

$\implies y=\dfrac{4}{x-2}-1$

Rearrange to make x the subject:

$\implies y+1=\dfrac{4}{x-2}$

$\implies (y+1)(x-2)=4$

$\implies xy-2y+x-2=4$

$\implies xy+x=2y+6$

$\implies x(y+1)=2y+6$

$\implies x=\dfrac{2y+6}{y+1}$

Swap x and y:

$\implies y=\dfrac{2x+6}{x+1}$

Change y to the inverse of the function sign:

$\implies f$ $\:^{-1}(x)=\dfrac{2x+6}{x+1}$

Rewrite g(x) as a fraction:

$g(x)=\dfrac{3}{x+2}-2$

$\implies g(x)=\dfrac{3}{x+2}-\dfrac{2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2(x+2)}{x+2}$

$\implies g(x)=\dfrac{3-2x-4}{x+2}$

$\implies g(x)=-\dfrac{2x+1}{x+2}$

Therefore, as the inverse of f(x) ≠ g(x), the functions are NOT inverses of each other

4 0

1 year ago

Can yall like--- help????? i suck at geometry

SSSSS [86.1K]

Answer:

you do Length x Width x height

8 3/8 x 6 x 8 1/4 = 414.56

hope this helps :-)

7 0

2 years ago

∠1 and ∠2 are supplementary angles. If m∠1 = 77°, then m∠2 =

posledela

Answer:

B. 103°

Step-by-step explanation:

Supplementary angles add up to 180°, so we can find the measure of angle 2 by subtracting 77 from 180

180 - 77

= 103

So, m∠2 is 103°

7 0

2 years ago

Look at the figure, FHJM. find the length of HJ

Nat2105 [25]

Answer:

$HJ=42\ m$

Step-by-step explanation:

we know that

In a parallelogram opposite sides are equal and parallel

The figure FHJM is a parallelogram

$FH=JM=36\ m$

$HJ=FM=42\ m$

therefore

$HJ=42\ m$

6 0

2 years ago

4<br> The points (2, r) and (4, -8) lie on a line with slope - 1. Find the missing coordinate r.

maksim [4K]

R=-6

Mark brainliest please

Hope this helps you

6 0

2 years ago