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ELEN [110]
2 years ago
5

A square-based pyramid has a base of area 16 cm² and a volume of 16 cm³. Calculate:

Mathematics
2 answers:
Nady [450]2 years ago
8 0

Answer:

3

Step-by-step explanation:

V=⅓b²h

16=⅓*16*h

16=16h/3

h=3cm

Elan Coil [88]2 years ago
4 0
Answer to (a) = 3cm
Answer to (b) = height is 12cm, area of base is 16 cm2

Formula for question a
Height = (3)V/a^2
We know v=16, we know a is 4
Height = (3) 16/16
Height = (3)

Formula for question b
If it’s similar, we will first find the ratio of V
We know one pyramid V=16, the other is V=1024
16 to 1024 = 64 cm3, take cube root of that for a ratio of 4
Multiply your known measurements x 4
So height is 3 x 4 = 12
Base edge is 4 x 4 =16
Volume is known at 1024cm3

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PLEASE PLEASE HELP ME ASAP
Vika [28.1K]

Answer: DC=30.5

Step-by-step explanation:

Use trigonometry to solve this question

  • sin=O/H
  • cos=A/H
  • tan=O/A

----------------------------------------------------------

First Step: find BD

- AB relative to 54° is [hypotenues]

- BD relative to 54° is [opposite]

- Therefore, we need to use O/H, which is Sin

- sin(54°)=O/20=20·sin(54°)=16.2

Second Step: Find DC

- DC relative to 28° is [adjacent]

- BD relative to 28° is [opposite]

- Therefore, we need to use O/A, which is tan

- tan(28°)=16.2/A=16.2/tan(28°)=30.5

Hope this helps!! :)

Please let me know if you have any questions

4 0
3 years ago
Ship Co. produces storage crates that require 1.2 meters of material at $.85 per meter and 01 direct labor hours at $15.00 per h
Vesna [10]

Answer:

$3.42

Step-by-step explanation:

Meters of material required = 1.2 meters

Cost per meter of material = $0.85

Direct labor hours = 0.1

Cost of direct labor per hour = $15

Overhead rate = $9 per direct labor hour

Standard cost per unit of product :

(Direct material cost per unit + direct labor cost per unit + overhead cost per unit)

Direct material cost per unit :

Material needed × cost per meter = (1.2 × $0.85) = $1.02

Direct labor cost per unit :

Direct labor hour × cost per hour = ( 0.1 × $15) = $1.5

Overhead cost:

0.1 * $9 = $0.9

Standard cost :

($1.02 + $1.5 + $0.9) = $3.42

5 0
3 years ago
What is 5 + -4 * (12/-6)
Archy [21]

Answer:

13

Step-by-step explanation:

Parentheses first:

5+ (-4) * (-2)

Then Multiply:

5+8

Then Add:

13

4 0
3 years ago
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Harlamova29_29 [7]

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8 0
2 years ago
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kakasveta [241]

Answer:4=1000000000 to the 9th power 376= 7292038183038293948 centimeters

Step-by-step explanation:

The rectangular rectangle is bended at a 83 degree angle which makes it 4=1000000000 to the 9th power 376= 7292038183038293948 centimeters

7 0
3 years ago
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