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Inessa05 [86]
3 years ago
5

Which polyhedra (regular or irregular) have perfect symmetry (plane of symmetry and rotation of symmetry) and why ?

Mathematics
1 answer:
julia-pushkina [17]3 years ago
3 0

Answer:

regular

Step-by-step explanation:

because an irregular polyhedron is formed by polygons of different shapes where all the components are not the same.

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A woman bought 50 meters of cloth at 60 cedis . she sold the cloth at 1.50 cedis per meter. Find her percentage profit.​
Usimov [2.4K]

Answer:

<em>2</em><em>5</em><em> </em><em>%</em>

Step-by-step explanation:

Cost price = 60 Ghana cedis for 50 metres

Selling price = 1.50 cedis for 1 meter

x cedis for 50 meters

Cross multiply

Selling price = 75 cedis

Profit = Selling price - Cost price

75 - 60

Profit = 15

Profit % =

\frac{profit}{cost \: price}  \times  \frac{100}{1}  \\  \frac{15}{60}  \times  \frac{100}{1}  \\  \\

Profit % = 25 %

5 0
3 years ago
19. which one of the following is not equal to the rest? a 2% of 150 b. % of 400 b 3 c. 6% of 60 d. 69 of 50​
Irina18 [472]

Answer:

i think it's c

Step-by-step explanation:

a. <u>2</u><u>/</u><u>1</u><u>00</u><u> </u><u>×</u><u> </u><u>1</u><u>5</u><u>0</u><u>=</u><u> </u><u>3</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>b</u><u>. </u><u> </u><u>100×</u><u>4</u><u>0</u><u>0</u><u>=</u><u>4</u><u>0</u><u>0</u><u>0</u><u>0</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u>c</u><u>. </u><u> </u><u> </u><u>6</u><u>/</u><u>100 </u><u>×</u><u>6</u><u>0</u><u>=</u><u> </u><u>1</u><u>.</u><u>2</u><u> </u><u>×</u><u>3</u><u>=</u><u>3</u><u>.</u><u>6</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>d</u><u>. </u><u>6</u><u>9</u><u>×</u><u>5</u><u>0</u><u>=</u><u>3</u><u>4</u><u>0</u><u>0</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>so </u><u>answer</u><u> </u><u>c</u><u>. </u><u> </u><u> </u><u> </u><u> </u><u> </u>

5 0
2 years ago
I need help please 16x-20y=60<br> slope intercept form
nexus9112 [7]
The slope intercept form is y=(4/5)x-(6/2)
7 0
3 years ago
A submarine traveling 200 meters below the surface of the ocean increases its depth by 45 meters. Adam says that the new locatio
My name is Ann [436]

Answer:

The error that Adam could have made is added 45 to the depth of

submarine instead of adding -45

Step-by-step explanation:

* Lets explain how to solve the problem

- A submarine traveling 200 meters below the surface of the ocean

- Increases its depth by 45 meters

- Adam says that the new location of the submarine is -155 meters

- We need to know the error of Adam

∵ We consider the surface of the ocean is the zero level

∵ The submarine is 200 meters below the surface of the ocean

∵ Below means negative

∴ The depth of submarine is -200 meters

∵ It increases the depth by 45 meters

- <em>That means it travels down another 45 meters</em>

∵ Down means negative

∴ The depth of submarine = -200 + (-45) = -245 meters

∴ The depth of submarine is 245 below the surface of the ocean

- Adam could thought that the submarine traveled up for 45 meters

 then he add 45 to -200

∵ -200 + 45 = -155 meters

∴ The error that Adam could have made is added 45 to the

   depth of submarine instead of adding -45

3 0
3 years ago
Complete the equation so that it has infinitely many solutions.<br> 8x - 14 = 8x -
kati45 [8]

Answer:

8x-14=8x-14

Step-by-step explanation:

So if both the equations are the same, that means that any value of x put in the equation will equal itself, so that means that there are infinite solutions to the equation

If you try to solve this equation, this happens

8x-14=8x-14

add 14 to both sides

8x=8x

divide by 8 both sides

x=x

This means that there are infinite solutions because any number could be x and it would still work

6 0
3 years ago
Read 2 more answers
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