Mathematics: Arectangular solid has sides of 4 can, 6 cm, and 8 cm what is the surface area

» Answer: The third objective• make x the subject:• Therefore, f(x):...

Arectangular solid has sides of 4 can, 6 cm, and

drma1084

13.01.2022

208cm^2

Step-by-step explanation:

Given the sides of the rectangular solid, which you can identify as "x", "y" as "z":

$x=8cm\\y=6cm\\z=4cm$

You can calculate the surface area (SA) of the rectangular solid with the following formula:

SA=2(yz+xy+xz)

Then you need to substitute the values of the "x", "y" and "z" into the formula.

Therefore, the surface area of the rectangular solid is:

$SA=2(yz+xy+xz)\\\\SA=2[(6cm)(4cm)+(8cm)(6cm)+(8cm)(4cm)]\\\\SA=2[24cm^2+48cm^2+32cm^2]\\\\SA=208cm^2$

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amflet19

21.11.2022

» Answer: The third objective

${ \tt{h(x) = - 4x + 1}}$

• make x the subject:

${ \tt{h(x) - 1 = - 4x }} \\ \\ { \tt{x = \frac{h(x)}{ - 4} - \frac{1}{ - 4} }} \\ \\ { \tt{x = - \frac{h(x)}{4} + \frac{1}{4} }}$

• Therefore, f(x):

${ \boxed{ \boxed{ \tt{ \: \: f(x) = - \frac{1}{4}x + \frac{1}{4} \: \: }}}}$

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