admin

2 months ago

Guest #5492403

2 months ago

**Answer:**

The polygon has 9sides with an interior angle measure of 140°

The exterior angle of a regular polygon=360°/n

40°=360°/n

n=360°/40°=9

So the polygon has 9 sides thus, a nonagon.

The measure of the interior angle=(n-2)180°/n

=(9-2)×180°/9=140°

**Step-by-step explanation:**

Have A Wonderful Day !!

Guest #5492404

2 months ago

**Answer - was dis for free points? lel**

Question

5 in.
21 in.
11 in.
what is the area? and what are the steps to do it

Solution 1

21 I think sorry if I am wrong

Question

Find the equation of a line parallel to y - 5x = 10 that passes through the point (5,1)

Solution 1

**Answer:**

y=5x-24

**Step-by-step explanation:**

First step find the slope of y-5x =10

Add 5x on the right side

y=10+5x

Slope is 5

Second step plug in (5,1)into point slope form:

y-y₁=m(x-x₁)

M is 5 cause thats slope

y-1=5(x-5)

distrubte 5

y-1=5x-25

add 1

y=5x-24

Solution 2

**Answer:**

y = 5x - 24

**Step-by-step explanation:**

y - 5x = 10

y = 5x + 10

If a line is parallel, it has the same slope. m = 5:

y = 5x + b

You can plug in the (5,1) to find the y-intercept:

1 = 5(5) + b

1 = 25 + b

-24 = b

y = 5x - 24

Question

25 is 8% of what numbet

Solution 1

**Answer:**

312.5%

25

8

x 100% = 312.5%

**Step-by-step explanation:**

Question

To show numbers as points on a line or plane.

Solution 1

Provide more information

Question

What is 65+78 i cant find any answer and my teacher is being a cool

Solution 1

**Answer:**

143

**Step-by-step explanation:**

Solution 2

**Answer:143**

**Step-by-step explanation:**

it is 143 if you add 65+78

Question

The perimeter of a rectangle is 70cm. if its length is decreased by 5cm and its width is increased by 5cm, its area will increase by 50 cm^2. Find the length and the width of the original rectangle.

Solution 1

**Answer:**

l=25, w=10

**Step-by-step explanation:**

2(25)+2(10)=70

25*10=250

25-5=20

10+5=15

20*15=300

Solution 2

**Answer:**

width = 10

lenghth = 25

**Step-by-step explanation:**

Question

What is 9*25? pleade i need help

Solution 1

225 is the answer you are looking for

Question

A music store buys instruments and then sells them for 30% more than they paid. If the store buys a guitar for $45, what will the store sell it for?

Solution 1

$58.50

30% of 45 is 13.5, and 13.50 plus 45 is 58.50

30% of 45 is 13.5, and 13.50 plus 45 is 58.50

Solution 2

**Answer:**

$58.50

**Step-by-step explanation:**

30% of 45 is 13.50 and 13.50 plus 45 is 58.50

Question

A family eats at a restaurant. The bill is 42. The family leaves a tip and spends 49.77 total.
How much money does the family tip?
How much is the tip as a percentage of the bill?

Solution 1

The Tip amount was =7.77. So 49.77-42=7.77

The percent is 7percent

The percent is 7percent

Question

The national park service is building a 16-mile hiking trail. They will post a sign every 1/8 mile along the trail, including one at the end. There will not be a sign posted at the beginning of the trail. How many signs will they post along the trail?

Solution 1

**Answer:**

128 signs

**Step-by-step explanation:**

8 * 16 = 128

Solution 2

**Answer:**

128

**Step-by-step explanation:**

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