1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Strike441 [17]
3 years ago
9

An exterior angle of a regular convex polygon is 40°. What is the number of sides of the polygon?

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0

The Exterior Angles of a Polygon add up to 360°, so there must be 9 sides, since 9*40=360.


You might be interested in
New Mexico has an area of 121,298 square miles. California has an area of 155,779 square miles. How many greater is the area in
makkiz [27]
34,481 is the correct answer
3 0
3 years ago
A school playground is in the shape of a rectangle 400 feet long and 200 feet wide if fencing cost $12 per year, what will it co
Nuetrik [128]
P = 2(L + W)
P = 2(400 + 200)
P = 2(600)
P = 1200 ft......

I am assuming that is 12 dollars per yard...
1 yd = 3 ft

1200/3 = 400 yds...at 12 per yd....12 * 400 = $ 4800 <==
8 0
3 years ago
The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally distributed with standard deviation 0.
Klio2033 [76]

Answer:

1. the probability that giraffe will be shorter than 17 feet tall is equal to 0.1056

2. the probability that a randomly selected giraffe will be between 16 and 19 feet tall is equal to 0.8882

3. the the 90th percentile for the height of giraffes is 19.024

Step-by-step explanation:

To calculate the probability that a giraffe will be shorter than 17 feet tall, we need to standardize 17 feet as:

z=\frac{x-m}{s}

Where x is the height of the adult giraffe, m is the mean and s is the standard deviation, so 17 feet is equivalent to:

z=\frac{17-18}{0.8}=-1.25

Now, the probability that giraffe will be shorter than 17 feet tall is equal to P(z<-1.25). Then, using the standard normal distribution table, we get that:

P(z

At the same way, 16 and 19 feet tall are equivalent to:

z=\frac{16-18}{0.8}=-2.5\\z=\frac{19-18}{0.8}=1.25

So, the probability that a randomly selected giraffe will be between 16 and 19 feet tall is equal to:

P(-2.5

Finally, to find the the 90th percentile for the height of giraffes, we need to find the value z that satisfy:

P(Z

Now, using the standard normal distribution table we get that z is equal to 1.28. Therefore, the height x of the giraffes that is equivalent to 1.28 is:

z=\frac{x-m}{s} \\1.28=\frac{x-18}{0.8} \\x=(1.28*0.8)+18\\x=19.024

it means that the the 90th percentile for the height of giraffes is 19.024

4 0
3 years ago
Round 1.4 to the nearest whole number
rodikova [14]

Answer:

2

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
The diagram shows a triangle 60° 11y 4y What is the value of y? y =​
Vedmedyk [2.9K]

Answer:

y = 8

Step-by-step explanation:

11y + 4y + 60 = 180

11y + 4y = 120

15y = 120

y = 8

4 0
3 years ago
Other questions:
  • A student solved this problem by working backward. Jared has some flowers. He has 6 more red flowers than yellow flowers. He has
    14·1 answer
  • Jay and Blair went fishing. Together, they ccaight 27 fish. Jay caught 2 times as many fish as Blair. How many fish did Jay and
    15·1 answer
  • A train 120cm can pass through a bridge while traveling at 80m/s in 10 s.how many seconds would a train 90m long take if i
    6·1 answer
  • ∆ABC is plotted on a coordinate plane. If ∆ABC rotates 90° clockwise around point C, what are the coordinates of A'?
    7·1 answer
  • What are the values of a and b in the equation (4x^a)^b = 256/x^8
    14·2 answers
  • Find the surface area of the cylinder
    9·1 answer
  • Percent of change<br><br>original:1.5<br>new:2.5<br><br>please show work​
    8·1 answer
  • Geometry question help
    14·1 answer
  • Can someone find the domain and range in this graph i’m having trouble
    8·1 answer
  • The motion of an object was recorded by measuring the velocity of the object in meters per second at various times, as shown in
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!