Using the correct number of significant figures, calculate the volume of a small, rectangular mirror that is 2.525 in long, 1.994 in wide, and 0.065 in thick. make sure to calculate the the perimeter of the front of the mirror, and not the side. dimensions are given in inches, but the final answer should be in centimeters. recall that 1 in = 2.54 cm exactly. (exclude units from answer)

Volume = 0.319 in3

Perimeter = 8.938 in

Step-by-step explanation:

The volume is calculated by multiplying the height, width and thickness

The perimeter is calculated by adding twice the length and twice the width

y=x+9

?

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form