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geniusboy [140]
3 years ago
12

PLEASE HELP ASAP!?!?!?!?!!!?!?!?!?!?!?!

Mathematics
1 answer:
FromTheMoon [43]3 years ago
3 0

Answer:

79.5

Step-by-step explanation:

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What is the perimeter of the quadrilateral that is the length of 7 height of 8
marta [7]

Answer:

30

Step-by-step explanation:

What you need to do is add all the sides when you want to find perimeter so for this one you would want to do 8+8+7+7 and that should give you 30. I hope I could help!!

6 0
2 years ago
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What is the sum of the arithmetic series
docker41 [41]

Answer:

S_ {12} = 192

Step-by-step explanation:

The nth term of the given arithmetic sequence is

U_n = 3 + 2n

The first term of this series is:

U_1 = 3 + 2(1) = 5

The last term of this series is when

n = 12

U_ {12}= 3 + 2(12)

U_ {12}= 3 + 24 = 27

The sum of the first n terms of an arithmetic series when the first an last term is known is given by:

S_n =  \frac{n}{2}(a + l)

Where a=5 is the first term and l=27 is the last term.

S_ {12} =  \frac{12}{2}(5 + 27)

S_ {12} =6(32) =19 2

6 0
3 years ago
A circle with its dimensions, in meters (m), is shown. What is the area, 0/1 in the meters, of the circle? Use 3.14 for pie. Rou
Vikentia [17]

Answer:21

Step-by-step explanation:

8 0
3 years ago
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Helppppppppppppp plssssssssss
alisha [4.7K]

Answer:

Step-by-step explanation:

8/12

5 0
2 years ago
The length and width of a rectangle are 7 cm and (x-8) cm respectively. Find the value of x if the area with of the rectangle is
Tcecarenko [31]

to find the area of a rectangle is LxW=A

plug in the given numbers you have

L = 7

W = x-8

A = 42

7 * x-8 = 42

7x-56= 42

solve for X

3 0
3 years ago
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