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vazorg [7]
2 years ago
12

GEOMETRY The formula F+ V= E + 2 shows the

Mathematics
1 answer:
malfutka [58]2 years ago
3 0

Answer:

The sum of the number of faces and number of vertices is equal to the sum of two and the number of edges.

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Identify the percent of change as an increase or decrease. Then find the percent of change, rounding to the nearest tenth of a p
kap26 [50]

Answer:

-60% decrease

Step-by-step explanation:

60 is the old value and 24 is the new value.

percent change = \frac{new - old}{|old|} x 100%

so for this problem, you can substitute the values given in the formula:

percent change = \frac{60-24}{|60|} x 100% = \frac{-36}{60} x 100% =

-60% (decrease)  

3 0
3 years ago
21. A square carpet has an area of 9 square meters.
blondinia [14]

Answer:

The answer is: 3 feet.

Step-by-step explanation:

The area is found by multiplying the width times the length. For a square, the length = the width.

Multiply 3 * 3 to get 9. So each side is 3 feet.

7 0
3 years ago
Please help me I need someone to help me with this ​
Digiron [165]

Answer:

-2

Step-by-step explanation:

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6 0
2 years ago
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The following table shows the salary of 7 people in an office last year.
kotegsom [21]

Answer:

a.  £24,714.29

b. £16,833.33

Step-by-step explanation:

The calculation of mean income is given below:-

Mean income = Total addition of salaries ÷ Number of workers

= £9,500 + £25,000 + £13,250 + £72,000 + £12,750 + £29,500 + £11,000

= £173,000 ÷ 7

= £24,714.29

Now,

the Mean income excluding Deva's salary:

= Formula of Mean income

= Total addition of salaries excluding Deva salary ÷ Number of workers

= (£9,500 + £25,000 + £13,250 + £12,750 + £29,500 + £11,000) ÷ 6

= £101,000 ÷ 6

= £16,833.33

7 0
3 years ago
Please help ASAP with this question
jeka57 [31]

Answer:

B. 7.9 in^2

Step-by-step explanation:

Part I.

Finding the fraction of the circle that is the sector

To start, let’s find the fraction of the circle that the sector covers. Since the measure of the central angle is 36, we get 36/360 or 1/10 of the circle.

Part II.

Finding the area of the Circle

The area of a circle is pi*r^2. Since r=5, then the area is 25pi.

Part III.

Finding the area of the sector.

Since the sector is 1/10 of the circle, its area is 1/10 of the circle’s area. So the area of the sector is 25/10*pi or (5/2)pi. This is approximately 7.9 in^2.

6 0
3 years ago
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