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tino4ka555 [31]
3 years ago
8

A rectangle has a length of 12 meters and a width of 400 centimeters. What is the perimeter,

Mathematics
2 answers:
Semenov [28]3 years ago
8 0

Answer:

D.3200

There are two ways to solve this question

1. 1200+1200+400+400=3200cm

2. 2(1200+400)=3200cm

notice that you need to convert the length into cm

i.e.12*100=1200cm

katrin2010 [14]3 years ago
4 0

Answer:

32000

Step-by-step explanation:P=2[L+W]

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Alexandra [31]

Answer:

Step-by-step explanation:

i think a is the answer

7 0
2 years ago
Read 2 more answers
In order for this ratio of volumes to be true, what measurements would have to be equal in all 3 solids?
Neporo4naja [7]

The measurements of the figures that should be equal in order for the ratio of volumes between the volumes of the cone, sphere, and cylinder of 1:2:3 to be true is; The radius and the height

<h3>What is a ratio?</h3>

A ratio is a comparison between the magnitudes or measurements of items, expressing the number of times one item in the ratio is contained within another item in the ratio.

The formula for the volume of a cone, V_p is, V_p = (1/3)·π·r₁²·h₁

The formula for the volume of a sphere, V_s, is V_s = (4/3)·π·r₂³

The formula for the volume of a cylinder, V_c, is V_c = π·r₃²·h₃

The ratio of the volumes in the question is 1:2:3

Therefore; The volume of the sphere is twice the volume of the cone, and the volume of the cylinder is three times the volume of the cone, which indicates;

(4/3)·π·r₂³ = 2 × (1/3)·π·r₁²·h₁...(1)

π·r₃²·h₃ = 3 × (1/3)·π·r₁²·h₁...(2)

Equation (1) indicates that we have;

(4/3)·π·r₂³ = 2 × (1/3)·π·r₁²·h₁

Where, h₁ = 2·r₂, we get;

(4/3)·π·r₂³ = 2 × (1/3)·π·r₁²·(2·r₂) = (4/3)·π·r₁²·r₂

Therefore; r₁ = r₂, and the diameter of the sphere is equal to the height of the cone

The radius of the cone is equal to the radius of the sphere

Equation (2) indicates;

π·r₃²·h₃ = 3 × (1/3)·π·r₁²·h₁ = π·r₁²·h₁

Therefore;

r₃²·h₃ = r₁²·h₁

r₃ = r₁

h₃ = h₁

The radius of the cone = The radius of the cylinder

The height of the cone = The height of the cylinder

  • The ratio of the volumes, 1 : 2 : 3 is true when the measurements of the radius and the height are equal for all three solids.

Learn more about the volume of regular solids here:

brainly.com/question/15316195

#SPJ1

4 0
1 year ago
Eeeeeeek need help! 5/3w = -10<br><br> A. -6<br> B. -1/6<br> C. -50/3<br> D. -5/6
xenn [34]

multiply both sides by the reciprical of 5/3 so:


3/5(5/3)w=-10(3/5)

w=-30/5=  -6

5 0
2 years ago
PLEASE HELP
aleksley [76]
I think its c. Also i have to put 20 characters so im just gonna keep typing
6 0
3 years ago
2x + 3 &gt; 13<br> x= 0<br> is this true?<br> O True<br> O False
omeli [17]

False.

Replace x with 0 and solve:

2(0) + 3 = 0+ 3 = 3

3 is not greater than 13 so the answer is false.

5 0
2 years ago
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