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
Sergeu [11.5K]
3 years ago
12

Determine if the statement is always, sometimes or never true. There are 300 degrees in the sum of the interior angles of a poly

gon.
A. Always
b.Sometimes
C.Never
Mathematics
1 answer:
Misha Larkins [42]3 years ago
7 0

Answer with explanation:

Sum of interior angles of any polygon having , n sides = (n-2)×180°

It is given that, sum of interior of any polygon =300°

A.T.Q

→ (n-2)×180=300

n-2=\frac{300}{180}\\\\ n=2+\frac{30}{18}\\\\n=\frac{66}{18}\\\\ n=3\frac{2}{3}

→Means that ,number of sides of the polygon is a fraction,which is Impossible.

Hence, we can conclude that,it is Impossible to have, 300 degrees in the sum of the interior angles of a polygon.

Option C: Never

You might be interested in
An object falls freely in a straight line and experiences air resistance proportional to its? speed; this means its acceleration
KiRa [710]

Answer:

t = 1.068 s

Step-by-step explanation:

given,

a(t) =- k v(t)

speed of the object decreases from 800 ft/s to 700 ft/s

distance = 1400 ft

time for deceleration = ?

a(t) =- k v(t)

\dfrac{dv}{dt}= - kv

\dfrac{dv}{v}= - kdt

integrating both side

\int_{800}^{700}\dfrac{dv}{v}= - k\int dt

ln(\dfrac{7}{8})=-kt

t = -\dfrac{1}{k}ln(\dfrac{7}{8})..........(1)

since,

v = v_1e^{-kt}

\dfrac{ds}{dt} = 800e^{-kt}

\int ds= 800\int_0^t e^{-kt}dt

1400= -\dfrac{800}{k}[e^{-kt}-e^0]

from equation 1

k= -\dfrac{8}{14}[\dfrac{7}{8}-1]

k= \dfrac{1}{8}

putting value of k in equation (1)

t = -8ln(\dfrac{7}{8})

t = 1.068 s

5 0
3 years ago
For what values of the variable does the following expression make sense:
Marianna [84]

This question revolves around the concept of domain (primarily) and range (secondarily).  The domain of the square root function is [0, +infinity).


The domain of "three times the sqrt of a" shares that domain:  [0, +infinity).

We were not asked to come up with the range, but if the range is wanted, it is

[0, +infinity).

3 0
3 years ago
Given: ABC is a right triangle with right angle C. AB = 18 centimeters and m<A = 22°.
rewona [7]

Answer:

6.74

Step-by-step explanation:

may be it is .......

3 0
2 years ago
PLEASE HELP AND EXPLAIN!!
prisoha [69]

Answer:

D

Step-by-step explanation:

This isnt a cartisean coordinate plane so A is wrong. One of our points is at

- 3 + i

Because it coincide with real number 3, and negative imaginary number i.

Conjugates are terms with opposite inverse of terms.

So our conjugates is

- 3 - i

3 0
3 years ago
Widget Wonders produces widgets. They
navik [9.2K]
Find the total cost of producing 5 widgets. Widget Wonders produces widgets. They have found that the cost, c(x), of making x widgets is a quadratic function in terms of x. The company also discovered that it costs $15.50 to produce 3 widgets, $23.50 to produce 7 widgets, and $56 to produce 12 widgets.
OK...so we have
a(7)^2 + b(7) + c = 23.50 → 49a + 7b + c = 23.50 (1)
a(3)^2 + b(3) + c = 15.50 → 9a + 3b + c = 15.50 subtracting the second equation from the first, we have
40a + 4b = 8 → 10a + b = 2 (2)
Also
a(12)^2 + b(12) + c = 56 → 144a + 12b + c = 56 and subtracting (1) from this gives us
95a + 5b = 32.50
And using(2) we have
95a + 5b = 32.50 (3)
10a + b = 2.00 multiplying the second equation by -5 and adding this to (3) ,we have
45a = 22.50 divide both sides by 45 and a = 1/2 and using (2) to find b, we have
10(1/2) + b = 2
5 + b = 2 b = -3
And we can use 9a + 3b + c = 15.50 to find "c"
9(1/2) + 3(-3) + c = 15.50
9/2 - 9 + c = 15.50
-4.5 + c = 15.50
c = 20
So our function is
c(x) = (1/2)x^2 - (3)x + 20
And the cost to produce 5 widgets is = $17.50
7 0
3 years ago
Other questions:
  • Mario went on a hike with his friends day hike to. 24 miles an hour for eight hours how many miles the day hiking all
    9·2 answers
  • An environmental engineer is tasked with determining whether a power plant cooling system is heating the water it uses more than
    15·1 answer
  • Pls help! will mark brainliest!
    8·2 answers
  • If the sides of a cube are 4 inches long, then its volume is A) 64 in B) 64 in2 C) 64 in3 D) 64 in4
    10·1 answer
  • Find the volume of the solid in the first octant bounded by the coordinate planes, the cylinder X^2+Y^2=4 and the plane X+Z=4.
    5·1 answer
  • What are the coordinates of point S.
    14·1 answer
  • The mathematical model C = 800x + 100,000 represents the cost in dollars a company has in manufacturing x items during a month.
    13·1 answer
  • Find the value of x
    14·2 answers
  • In a Laboratory, the count of bacteria in a certain experiment was increasing at the rate of 2.5% per hour. Find the bacteria at
    15·1 answer
  • Select the story problem that this division problem represents 1/2 divided by 2/5
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!