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Ymorist [56]
3 years ago
6

The area of the polygon is 27 mi2. What is the formula that shows the length of side a?

Mathematics
2 answers:
Maru [420]3 years ago
8 0

Answer:

a.a.3=27


Step-by-step explanation:

i got my answer wrong to see it

Zigmanuir [339]3 years ago
6 0

Answer:

n = 5

Step-by-step explanation:

Answer: and agenda:

n = 5

a = 3.96148 m

r = 2.72625 m

R = 3.36984 m

A = 27 m^2

P = 19.8074 m

x = 108 °

y = 72 °

_________________________________

where as r = inradius (apothem)

R = circumradius  

a = side length

n = number of sides

x = interior angle

y = exterior angle  

A = area

P = perimeter

π = pi = 3.14159...

√ = square root

Side Length a

a = 2r tan(π/n) = 2R sin(π/n)

Inradius r

r = (1/2)a cot(π/n) = R cos(π/n)

Circumradius R

R = (1/2) a csc(π/n) = r sec(π/n)

Area A

A = (1/4)na^2 cot(π/n) = nr^2 tan(π/n)

Perimeter P

P = na

Interior Angle x

x = ((n-2)π / n) radians = (((n-2)/n) x 180° ) degrees

Exterior Angle y

y = (2π / n) radians = (360° / n) degrees

polygon interior and exterior angles

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vekshin1

Answer:

15% off

Step-by-step explanation:

We know we paid $25.50 of the original $30. We can divide these two numbers \frac{25.5}{30}=0.85. This is means we paid 85% of the original price. The discount percentage is the remaining percentage from 85 to 100 which is 15. The pants were 15% off.

3 0
3 years ago
A baseball team's total wins and losses for one season is 162. The number of wins is 6 less than 2 times the number of losses. W
aivan3 [116]

Answer:

x + y = 162 and x = 2y - 6

Step-by-step explanation:

Let the total wins be x

Let the total loss be y

If a baseball team's total wins and losses for one season is 162, this can be expressed as;

x + y = 162 ....... 1

If the number of wins is 6 less than 2 times the number of losses, this is expressed as;

2 times the number of losses = 2y

6 less than 2 times the number of losses = 2y - 6

Now, If the number of wins is 6 less than 2 times the number of losses this is expressed as;

x = 2y - 6 .... 2

Hence the required system of equation are;

x + y = 162 and x = 2y - 6

8 0
2 years ago
If the Federal Reserve sells $40,000 in Treasury bonds to a bank at 5% interest, what is the immediate effect on the money suppl
stich3 [128]
If the federal reserve sells $40,000 in treasury bonds to a bank with 5% interest the immediate effect on the money supply is an decrease of $40,000.
6 0
3 years ago
Read 2 more answers
Lisa is 6 centimeters taller than her friend Ian. Ian is 10 centimeters taller than Jim. Every month, their heights increase by
Temka [501]

Lan is 146 centimeters tall now.

<u><em>Explanation</em></u>

Let, Lan's current height is h centimeters

As Lisa is 6 centimeters taller than Lan and Lan is 10 centimeters taller than Jim, so Lisa's current height = (h+6) centimeters and Jim's current height = (h-10) centimeters.

Every month, their heights increase by 2 centimeters.

So, after 5 months.....

Lan's height = h+(2*5)=(h+10) centimeters,

Lisa's height = (h+6)+(2*5)= (h+16) centimeters and

Jim's height = (h-10)+(2*5)= h centimeters

Given that, the sum of Ian's and Jim's heights will be 140 centimeters more than Lisa's height in 5 months. So the equation will be....

(h+10)+h= (h+16)+140\\ \\ 2h+10=h+156\\ \\ 2h-h=156-10\\ \\ h=146

So, the current height of Lan is 146 centimeters.

7 0
3 years ago
Please help 100 points
emmainna [20.7K]

Answer:

Choices A, C, E

Step-by-step explanation:

The prices are proportional, so divide any price by the corresponding number of pounds to find the unit cost.

$1.47/(3 lb) = $0.49/lb

The unit cost is $0.49 per lb.

Now we look in the choices to see which choice has a unit price of $0.49/lb.

We divide each price by its number of pounds to fund each unit cost. Every choice with a unit cost of $0.49/lb is an answer.

A $0.98/(2 lb) = $0.49/lb     Choice A works

B $4.45/(7 lb) = $0.64/lb      Choice B does not work

C $2.94/(6 lb) = $0.49/lb     Choice C works

D $0.54/(1 lb) = $0.54/lb     Choice D does not work

E $3.92/(8 lb) = $0.49/lb     Choice E works

Answer: Choices A, C, E

6 0
3 years ago
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