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sergey [27]
3 years ago
15

The diagram shows two congruent regular polygons joined together.

Mathematics
1 answer:
svlad2 [7]3 years ago
4 0
10 sides

360-72=288
288 divided by 2 is 144
Decagon have 144 degree interior angles
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PLSSSSSSSSSSSSSSSSSSSSSSSSSS ANSWER THIS
postnew [5]

Step-by-step explanation:

(a.y^{3} +3y^{2} -3 ) = (ay^{2} +(4a+3)y +4(4a+3))(y-4) +64a+45

so A = 64a +45

(2y^{3} -5y+a =(2y^{2} +8y +27)(y-4) +108 +a

so B = 108 +a

2A-B=0--> 2(64a+45)-108-a=0--> a =18/127

7 0
3 years ago
Graph the line with slope 3/2 and y-intercept 3. ​
Tcecarenko [31]

Answer:

The steepness of any incline can be measured as the ratio of the vertical change to the horizontal change. For example, a  5 % incline can be written as  5100 , which means that for every  100  feet forward, the height increases  5  feet.Figure  4.4.1 In mathematics incline of a line the slope and use the letter  m  to denote it. The vertical change is called the rise and the horizontal change is called the run.Slopem=vertical changehorizontal change=riserun(4.4.1)The rise and the run can be positive or negative. A positive rise corresponds to a vertical change up and a negative rise corresponds to a vertical change down. A positive run denotes a horizontal change to the right and a negative run corresponds to a horizontal change to the left. Given the graph, we can calculate the slope by determining the vertical and horizontal changes between any two points.Example  4.4.1 Figure  4.4.2 From the given points on the graph, count  3  units down and  4  units right.m=riserun=−3units4units=−34 the Answer is.m=−34 .

Step-by-step explanation:

8 0
2 years ago
A to B is 420 mile away, A travels 40 mph and B travels 80 mph. they toward to each other. how many hour will they meet ?
N76 [4]

Answer:

Step-by-step explanation:

I hope these are people in vehicles travelling toward each other.

80 mh * t + 40 mph * t = 420 miles

The two vehicles are going to travel a total of 420 miles. B will cover a lot more ground than A, but together they will make 420 miles

80t + 40t = 420

120t = 420

t = 420/120

t = 3.5

So after driving 3.5 hours, the two cars will meet.

5 0
3 years ago
Describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.
MaRussiya [10]

Answer:

TRAIN TRACKS!!!!

Step-by-step explanation:

on edge

6 0
3 years ago
A survey revealed that 56% of the students at North Valley high school are involved with in a sports team. The survey also showe
oksano4ka [1.4K]

Answer:

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

Step-by-step explanation:

56% of the students are involved in a sport team

56% = 0.56

According to the question, it is stated that 24% of the students at the school that are involved in a sports team also participated in the prom dance.

24% = 0.24

This means that we are going to find 24% of the original 56%, since 24% of them also participated in the prom dance.

The probability that a student who is involved in a sports team also participated in the prom dance = 0.24 * 0.56

The probability that a student who is involved in a sports team also participated in the prom dance = 0.1344

5 0
3 years ago
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