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Nesterboy [21]
3 years ago
9

A table is in the shape of a regular pentagon with a side length of 3 feet and an

Mathematics
1 answer:
ehidna [41]3 years ago
8 0

Answer:

15.5 ft²

Step-by-step explanation:

The area (A)  of a regular polygon is calculated as

A = \frac{1}{2} pa ( p is the perimeter and a the apothem )

Here side of regular pentagon is 3 ft, thus

perimeter = 5 × 3 = 15, so

A = 0.5 × 15 × 2.06 ≈ 15.5 ft ( to the nearest tenth )

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If AB = 12, AC = 16, and ED = 5, find AE.
AleksAgata [21]

Answer:

AE =15

Step-by-step explanation:

BC=16-12 = 4

AE=x

12/4 = x/5

Cross multiplication

4x=60

x=15

       4x3 = 12

       5x3 =15

5 0
2 years ago
Plz help me its confusing
IgorC [24]

Answer:

Step-by-step explanation:

A

8 0
3 years ago
How do you solv divisions like 60/19. Please someone tell me fast
MatroZZZ [7]

Answer:

The first thing you do is:        

Step-by-step explanation:

How to calculate 60 divided by 19

Here we will show you step-by-step with detailed explanation how to calculate 60 divided by 19 using long division.

Before you continue, note that in the problem 60 divided by 19, the numbers are defined as follows:

60 = dividend

19 = divisor

Step 1:

Start by setting it up with the divisor 19 on the left side and the dividend 60 on the right side like this:

           

 1 9 ⟌ 6 0  

Step 2:

The divisor (19) goes into the first digit of the dividend (6), 0 time(s). Therefore, put 0 on top:

       0    

 1 9 ⟌ 6 0  

Step 3:

Multiply the divisor by the result in the previous step (19 x 0 = 0) and write that answer below the dividend.

       0    

 1 9 ⟌ 6 0  

       0    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (6 - 0 = 6) and write the answer below.

       0    

 1 9 ⟌ 6 0  

     - 0    

       6    

Step 5:

Move down the 2nd digit of the dividend (0) like this:

       0    

 1 9 ⟌ 6 0  

     - 0    

       6 0  

Step 6:

The divisor (19) goes into the bottom number (60), 3 time(s). Therefore, put 3 on top:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

Step 7:

Multiply the divisor by the result in the previous step (19 x 3 = 57) and write that answer at the bottom:

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

      5 7  

Step 8:

Subtract the result in the previous step from the number written above it. (60 - 57 = 3) and write the answer at the bottom.

       0 3  

 1 9 ⟌ 6 0  

     - 0    

       6 0  

     - 5 7  

         3  

3 0
2 years ago
Claire is going to invest in an account paying an interest rate of 5.4% compounded daily. How much would Claire need to invest,
Delicious77 [7]

Answer:

P ≈ 100

Step-by-step explanation:

260 = P(1+0.054/365)^365(14)

260 = P(1.000147945)^5110

260= P(2.129621112)

P= 122.087444818

P ≈ 100

4 0
3 years ago
Kelly is three years younger than her sister. The sum of their ages is 34 years. How old is Kelly and how old is her sister?
Kazeer [188]

Answer:

Kelly is 20

Her sister is 14

Step-by-step explanation:

34 ÷ 2 = 17 (average)

17 + 3 = <u>20</u>

17 - 3 = <u>14</u>

4 0
4 years ago
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