3 years ago

HELP MEEEEE I WILL GIVE YOU BRAINLYEST

Mathematics

1 answer:

aliya0001 [1]3 years ago

5 0

Answer:

c and e

Step-by-step explanation:

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Can someone plz help me with this I don't get it

frutty [35]

The answer is 26

Explanation:
It’s easy

7 0

3 years ago

What substitution should be used to rewrite 4x^4-21x^2+20=0 as a quadratic equation

Andreyy89

let y = x^2

4y^2 -21y + 20 = 0

solve for y

then substitute back in to get x

8 0

3 years ago

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540 seconds how many minutes

Ira Lisetskai [31]

1 second = 0.0167 minute
540 seconds = 540 * 0.0167 ≈ 9 minute

Hope this helps :)

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Sebastian solved the radical equation y + 1 = but did not check his solution. (y + 1)2 = y2 + 2y + 1 = –2y – 3 y2 + 4y + 4 = 0 (

Softa [21]

Answer:

There are no true solutions to the equation.

Step-by-step explanation:

The correct equation is

$y+1=\sqrt{-2y-3}$

Solve for y

squared both sides

$(y+1)^2=(-2y-3)$

$(y^2+2y+1)=(-2y-3)$

$y^2+2y+1+2y+3=0$

$y^2+4y+4=0$

$(y+2)(y+2)=0$

$y=-2$

Verify

substitute the value of y in the original expression

$-2+1=\sqrt{-2(-2)-3}$

$-1=1$ ----> is not true

therefore

There are no true solutions to the equation.

4 0

3 years ago

Is the answer a, b, c, or d?

lbvjy [14]

I hope this helps you

6 0

3 years ago