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
aniked [119]
3 years ago
12

What is the sum of interior angles of a convex nonagon

Mathematics
1 answer:
zmey [24]3 years ago
8 0
A nonagon has 9 sides, so n = 9

S = sum of the interior angles
S = 180*(n-2)
S = 180*(9-2)
S = 180*7
S = 1260

Answer is choice B
You might be interested in
There seems to be no end to how large the signing bonuses professional athletes can obtain when they start their careers (Peyton
Anestetic [448]

Answer:

3.113, 4.507

Step-by-step explanation:

From the given values:

Mean = 3.81

Standard deviation = 1.74

Therefore

M = √(1.72/18) = 0.4

μ = M ± t(sM)

μ = 3.81 ± 1.74*0.4

μ = 3.81 ± 0.697

Recall that the mean is estimated at 90% confidence level,

Hence,

= 90% CI [3.113, 4.507]

6 0
3 years ago
​Anthony read 1/3 of a book every day for twelve days. How many books did he read altogether?
Anettt [7]

Answer:

Step-by-step explanation:

3/36

6 0
2 years ago
Aiko is finding the sum (4 + 5i) + (–3 + 7i). She rewrites the sum as (–3 + 7)i + (4 + 5)i. Which statement explains the mathema
yan [13]
In this item, it can be seen that from an expression of,
                                  (4 + 5i) + (-3 + 7i)
Aiko transformed the equation by factoring out the i's from the expression and wrote it as,
                                   (4 + 5)i + (-3 + 7)i
Now this is wrong because i there is not a variable but a notation that 5 and 7 are imaginary numbers. In fact, she cannot factor out the i's because it is not present in both -3 and 4. The answer therefore to this item is the last sentence, "Aiko incorrectly used the distributive property by combining ..."
4 0
3 years ago
Read 2 more answers
Four less then five times a number is equal to 11
choli [55]
4 less (-4) 5 times a number (5n) is (=) 11 (11)

-4+5n=11
add 4 to both sides
4-4+5n=11+4
0+5n=15
5n=15
divide both sides by 5
5n/5=15/5
1n=3
n=3
the number is 3

4 0
3 years ago
HELP DUE IN 10 MINS!
Ksju [112]

Answer:

125.6 cm²

Step-by-step explanation:

the area of sector = 225/360×3.14×8²

= ⅝ × 3.14 × 64

= 3.14 × 40

= 125.6 cm²

5 0
3 years ago
Other questions:
  • What is the solution to 5a-15+9a=3a+29
    8·2 answers
  • What is your heart rate supposed to be per minute
    14·1 answer
  • How would you write an equation of the line with the points (-2,4) (4,1)
    14·1 answer
  • Ayo help me please<br><br> 4 5/6 x 2/5
    15·2 answers
  • Jon paid $20 towards the cost of an $80 sweater. Write a numeric equation to show how much he still owes on the sweater.
    12·1 answer
  • Sharkira went bowling with her friends.She paid $3 to rent shoes and then 4.75 for each game of bowling. If she spent a total of
    6·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    14·1 answer
  • A point P moves such that it is three units from the point (3, 4). Obtain the
    6·2 answers
  • Please help solve for x
    8·1 answer
  • Help please i’ll really appreciate it
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!