Mathematics, 14.02.2021 14:00 Kuwillalean38

can someone please help me with this I'm failing this class and I need help please I'll mark you brainliest.

can someone please help me with this I'm failing this class and I need help please I'll mark you br

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Answer from: hockeykid7583

1. 36 $m^{2}$

2. 333.125 $ft^{3}$

3. 210 $ft^{3}$

4. Yes, Martina's estimate is reasonable.

Step-by-step explanation:

Numbering the rectangular surfaces, we have:

Area of a rectangle = length x width

For surface 1: Area = 2 x 2.4

= 4.8 $m^{2}$

For surface 2: Area = 3 x 2.4

= 7.2 $m^{2}$

For surface 3: Area = 3 x 2

= 6.0 $m^{2}$

For surface 4: Area = 3 x 2.4

= 7.2 $m^{2}$

For surface 5: Area = 2 x 2.4

= 4.8 $m^{2}$

For surface 6: Area = 3 x 2

= 6.0 $m^{2}$

Total surface area of the rectangular prism = (2 x 4.8) + (2 x 7.2) + (2 x 6.0)

= 36 $m^{2}$

2. length = 10.25 ft

width = 5 ft

height = 6.5 ft

Thus,

volume = l x w x h

= 10.25 x 5 x 6.5

= 333.125 $ft^{3}$

3. length = 15 ft

width = 7 ft

height = 2 ft

So that,

volume = l x w x h

= 15 x 7 x 2

= 210 $ft^{3}$

4. For a rectangular prism, area of the opposite surfaces are equal. So that;

Area of rectangle = length x width

For surface 1: Area = 13.0 x 6

= 78.0 $ft^{2}$

For surface 2: Area = 13.0 x 8

= 104.0 $ft^{2}$

For surface 3: Area = 6 x 8

= 48 $ft^{2}$

Surface area of the prism = (2 x 78.0) + (2 x 104.0) + (2 x 48)

= 460.0 $ft^{2}$

Therefore, Martina's estimate is reasonable.

Answer from: Quest

A. p = 2(l + w)p/2 - l = ww = p/2 - l b. while isolating the variable w in the equation, i first divided both sides by 2 and then i subtracted l from both sides. i hope this .

Answer from: Quest

show us the graphs dude

step-by-step explanation:

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