Determine the value of y, if x is 81 . y=sqrtx-2 Answer: y=

Substitute x value: Substitute the value of x into the equation. y = sqrt(x) - 2 y = sqrt(81) - 2Calculate square root: Calculate the square root of 81. sqrt(81) = 9Subtract 2: Subtract 2 from the square root of 81. y = 9 - 2Find y value: Perform the subtraction to find the value of y. y = 7

Resources

Testimonials

Plans

Resources

Testimonials

Plans

AI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Determine the value of
y, if
x is 81 .

y=sqrtx-2
Answer:
y=

Determine the value of $y$ , if $x$ is $81$ . $\newline$ $y=\sqrt{x}-2$ $\newline$ Answer: $y=$

View step-by-step help

Home

Math Problems

Grade 8

Solve equations with variables on both sides

Full solution

Q. Determine the value of

y

, if

x

81

\newline

y=\sqrt{x}-2

\newline

Answer:

y=

Substitute x value: Substitute the value of $x$ into the equation. $y = \sqrt{x} - 2$ $y = \sqrt{81} - 2$
Calculate square root: Calculate the square root of $81$ . $\sqrt{81} = 9$
Subtract $2$ : Subtract $2$ from the square root of $81$ . $\newline$ $y = 9 - 2$
Find y value: Perform the subtraction to find the value of $y$ . $y = 7$