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Leona [35]
3 years ago
7

How do you go about doing this surface area problem?

Mathematics
1 answer:
hammer [34]3 years ago
5 0
Break it down into 2-Dimensional shapes. Then add the areas together.

From the picture you can see;
front & back rectangles are 2*(4 x 8) = 64 m²
2 side rectangles are 2*(4 x 12) = 56 m²
2 triangular front & back pieces are (1/2)*8*3 = 12 m²
2 roof rectangles are 2*(5 x 12) = 120 m²

total Surface area = 64 m² + 56 m² + 12 m² + 120 m²
= 252 m²

For the volume; break it up into 3-dimenssional shapes and add the volumes together.

From the picture you can see;
Rectangular box volume is 4 x 8 x 12 = 384 m³
Triangular roof volume is area of front triangle multiplied through the length. (1/2)*8*3* 12 = 144 m³

Total volume = 384 m³ + 144 m³
= 528 m³
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The figure below is a square. Find the length of side x in simplest radical form with a rational denominator.
telo118 [61]

9514 1404 393

Answer:

  x = (√2)/2

Step-by-step explanation:

The diagonal is √2 times the side length (x), so ...

  1 = x√2

  √2 = 2x . . . . . multiply by √2

  (√2)/2 = x . . . . divide by 2

The side length x is (√2)/2.

3 0
3 years ago
A van can travel 18 miles on each gallon of gasoline. At that rate, how many miles can the van travel on 15 gallons of gasoline?
AleksAgata [21]

Answer:

270 Miles

Step-by-step explanation:

18 miles per gallon

15 gallons

Basically count 18, 15 times

18*15=270

The van can travel 270 miles

3 0
2 years ago
se quiere embotellar 43,5 litros de leche en botellas de 0,750 de litro ¿cuantas botellas se necesitan?
Flauer [41]
43.5\ [L]:0.750\ [L]= \frac{\big{43.5}}{\big{0.750}} = \frac{\big{4350}}{\big{75}} =58\\\\Ans.\ 58\ bottles\ are\ needed.
5 0
3 years ago
The approximate solutions of x^-6x-11=0 are x=11.9 or x=5.9 <br>True or false
solmaris [256]

Answer:

(11.9^-6(11.9))-11=?

-10.9999958095 so false

5.9^-6(5.9)-11=

-10.9998601251 so also false

FALSE

Hope This Helps!!!

5 0
2 years ago
Find the values of x and y.
8090 [49]

Answer:

X=65

Y=40

Step-by-step explanation:

2x+10=140

-10 -10

2x=130

÷2 ÷2

x=65

Y=180-140

Y=40

7 0
2 years ago
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