Question

What are the solutions to the equation y² –1 = 24?

Choose all answers that are correct.

A.
5

B.
12.5

C.
–5

D.
–12.5

C?

Answer 1

\[y^2-1=24\]
\[\mathrm{Subtract\:}24\mathrm{\:from\:both\:sides}\]
\[y^2-25=0\]

Answer 2

@Spicytaco1 can you solved the Equation

Answer 3

B?

Answer 4

no

Answer 5

Solve the Equation using factoring and completing square and quardaic formula...
use any method

Answer 6

a and c

Answer 7

y = +5
and
y = -5

Answer 8

\[\mathrm{Solving\:with\:the\:Quadratic\:Formula}\]
\[\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\]
\[\quad x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\]
\[\mathrm{For\:}\quad a=1,\:b=0,\:c=-25:\quad y_{1,\:2}=\frac{-0\pm \sqrt{0^2-4\cdot \:1\left(-25\right)}}{2\cdot \:1}\]
\[y=\frac{-0+\sqrt{0^2-4\cdot \:1\cdot \left(-25\right)}}{2\cdot \:1}=5\]
\[y=\frac{-0-\sqrt{0^2-4\cdot \:1\cdot \left(-25\right)}}{2\cdot \:1}=-5\]
\[y=5,\:y=-5\]

Answer 9

can you help me with one more?

Answer 10

yes

Answer 11

ok

Answer 12

What are the square roots of 484?

A.
−12 and 12

B.
−18 and 18

C.
−22 and 22

D.
−242 and 242

Answer 13

\[\sqrt{484}\]
\[\mathrm{Factor\:the\:number:\:}\:484=22^2\]
\[=\sqrt{22^2}\]
\[\sqrt{22^2}=22\]

Answer 14

Thanks :D

Answer 15

Welcome :)