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Bond [772]
3 years ago
11

What is the surface area of the composite figure shown?

Mathematics
1 answer:
kati45 [8]3 years ago
8 0

Answer:

531 m²

Step-by-step explanation:

9x9x5=405 (5 sides that are 9x9, including the bottom)

1/2x9x7x4=126 (4 triangles on top)

405+126=531

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An architect is planning to make two triangular prisms out of iron. The architect will use ∆ABC for the bases of one prism and ∆
____ [38]

a) 5/7

b) 4459 cm cube

c) 2275 cm cube

Step-by-step explanation:

Step 1 :

a)

The Side AB (28 cm) has been scaled to side DE (20 cm)

Let x b the scale factor.

Then we have 28 *x = 20

=> x = 20/28 = 5/7

Hence the scale factor is 5/7

Step 2 :

b)

Given the height of the triangular prism is 15 cm

Volume = ( 1/2 ) * base* height of the triangle * height of the prism

= (1/2)* 21*28*15 = 4410 cm cube.

Step 3 :

c)

Given volume of the triangular prism with base ABC is 4459 cm cube

The scale factor is 5/7

Hence the volume of the prism with DEF as base is

4459 * (5/7)*(5/7) = 2275 cm cube.

4 0
3 years ago
Can anyone help me with this math stuff? I will give you 15 points please help me
denpristay [2]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Identify one reason the lower class might be more heavily represented in official crime statistics.
TiliK225 [7]

Lower-level offenders are more likely to be prosecuted than higher-level offenders.

<h3>What is the Working class?</h3>
  • The working class (or laboring class) is made up of people who work in manual labor or industrial work and are paid through waged or salaried contracts.
  • Working-class occupations include blue-collar and most pink-collar jobs (see also "Designation of workers by collar color").
  • Members of the working class rely solely on wage labor earnings; thus, more inclusive definitions include almost all of the working age population of industrial nations, as well as those employed in non-industrialized economies' urban areas (cities, towns, villages) or in the rural workforce.
  • Lower-level offenders are more likely than higher-level offenders to be prosecuted.

Therefore, lower-level offenders are more likely to be prosecuted than higher-level offenders.

Know more about the Working class here:

brainly.com/question/25573133

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3 0
2 years ago
Help please!!!!!!!!!!!!
xz_007 [3.2K]

The Answer is $360

8x20=160       160x1.50=<u>240</u>

20x6.00=<u>120</u>

120+240=360


5 0
3 years ago
Read 2 more answers
Kenzie got a gift card for $30.00 to spend in the app store. Each app cost d dollars. write an expression to represent the amoun
dimaraw [331]
The correct equation would be y=30-6d, the y would be the amount of money left.
8 0
3 years ago
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