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Talja [164]
3 years ago
14

Helpppppppppp pleaseeeeeeeee

Mathematics
2 answers:
Assoli18 [71]3 years ago
4 0

Answer:

  1. 7
  2. 19
  3. 21
  4. 23

Step-by-step explanation:

Plug in X for each one

Orlov [11]3 years ago
3 0

Answer:

first answer: 7

second answer: 19

third answer: 21

forth answer: 23

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The regular pentagon shown has an apothem with a length of 2 centimeters. To the nearest tenth, what is the area of the regular
Rom4ik [11]

Answer:

11.8cm²

Step-by-step explanation:

The area of the regular pentagon is expressed as;

A = pa/2

p is the perimeter of the pentagon

a is the apothem

Since p = 5s

s is the side length, hence;

A = 5sa/2

Get the side length s;

central angle = 360/5

central angle = 72degrees

angle in the right angle triangle =72/2 = 36degrees

Using SOH CAH TOA

sin 36 = x/2

x = 2sin36

x = 1.1755

s = 2x

s = 2.35cm

Get the area

A = 5(2.35)(2)/2

A = 5(2.35)

A = 11.8cm²

Hence the area of the regular pentagon is 11.8cm²

8 0
3 years ago
Read 2 more answers
Find break even point cost $284, operating expenses $43, selling price $299
Over [174]
Break even = fixed cost / (sales - variable cost)

The fixed cost is the point cost and operating cost is the variable cost.

Break even = 284 / (299 - 43)
Break even = 1.1 units
3 0
3 years ago
Somebody help me please What is 10x + 60 = 300 first answer brainiest
arlik [135]

Answer:

x=24

Step-by-step explanation:

10x + 60 = 300

10x=300-60

10x=240

x=24

8 0
3 years ago
Read 2 more answers
6.6.PS-11
Tanya [424]

Answer:

20

Step-by-step explanation:

31 ÷ 155% =

31 ÷ (155 ÷ 100) =

(100 × 31) ÷ 155 =

3,100 ÷ 155 =

20

4 0
3 years ago
Read 2 more answers
(3,-7) and (4,0) distance formula
Leto [7]

Answer: approximately 7.07

Step-by-step explanation:

The distance formula is d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}. Since we are given teo points, we can plug them in and solve.

d=\sqrt{(4-3)^2+(0-(-7))^2}       [parenthesis]

d=\sqrt{(1)^2+(7)^2}                         [exponent]

d=\sqrt{1+49}                                [add]

d=\sqrt{50}                                      [square root]

d=7.07

The distance is approximately 7.07.

7 0
4 years ago
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