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
Brrunno [24]
3 years ago
11

The sum of the interior angles of a polygon is

Mathematics
1 answer:
Crank3 years ago
6 0

Answer:

D) 15

Step-by-step explanation:

The sum of the interior angles of a polygon is given by

(n - 2) \times 180

We have that, the sum of the interior angles of a polygon is

26 right angles. We want to find n, the number of sides.

We substitute into the formula to get:

(n - 2) \times 180 = 26 \times 90

Divide through by 90

2(n - 2) = 26

Divide through by 2

n - 2 = 13

n = 13 + 2

n = 15

You might be interested in
I need the answer help!
pentagon [3]

Answer:

add 72 plus 2

Step-by-step explanation:

theres ur answur

5 0
3 years ago
This is a 30-60-90 triangle.<br> What is the measure of x?<br> 18<br> X<br> X<br> x = 9V [?]
sammy [17]

Answer:

\huge\: x =9 \sqrt{ \boxed{3}}

Step-by-step explanation:

Given is a 30°-60°-90° triangle and x is the length of side opposite to 60° angle.

\therefore \: x =  \frac{ \sqrt{3} }{2} \times 18 \\  \\  \therefore \: x = \sqrt{3}  \times 9 \\  \\  \huge\therefore \: x =9 \sqrt{ \boxed{3}}

5 0
3 years ago
Simplify square root of five times the quantity eight plus three square root of six
saw5 [17]

Answer:

15.6855577203

Step-by-step explanation:

1. The square root of 5 is 2.2360679775 because you divide 5 by 2.

2. The you add 8+3=11.

3. Now you add 2.2360679775 and 11 which is 13.2360679775.

4. The square root of 6 is 2.44948974278

5. Now add 2.44948974278 and 13.2360679775 which is 15.6855577203

7 0
3 years ago
Simplify :<br><br> -0.5(0.8 + 8y)
Minchanka [31]

Answer:

-0.4-4y

Step-by-step explanation:

-0.5(0.8+8y)

Distribute -0.5 into the parentheses

= -0.5×0.8+(-0.5)×8y

= -0.4+(-4y)

A negative and a positive make a negative

= -0.4-4y

I hope this helps!

6 0
3 years ago
Write an equation for the line with slope -5 and point (2,4).
Elza [17]
Y = -5x + b
Plug in the point
4 = -5(2) + b
4 = -10 + b, b = 14
Solution: y = -5x + 14
6 0
3 years ago
Other questions:
  • What is the y-intercept of a line thay has a slope of 3 and passes through point (-1,-7)
    14·1 answer
  • What is the range of y=csc(x)
    14·2 answers
  • If AD = 18.02 cm and AB= 20 cm, calculate the length of AC
    12·1 answer
  • Help pls IM so confused
    5·2 answers
  • I need help ASAP please! <br>The graph of y=f(x) is shown below.<br><br>Graph y=1/2f(x)
    5·1 answer
  • What is the definition of a <br> irrational number?
    10·1 answer
  • How long is a string reaching from the top of a 13-ft pole to a point on the ground that is 7ft from the base of the pole ?
    9·2 answers
  • I WILL GIVE YOU 58 POINTS!!!!!!!!!
    15·1 answer
  • What is 3/4 + 5/12? I need help.
    8·1 answer
  • Perimeter of this shape
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!