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
MrMuchimi
2 years ago
15

Please help on question 12 or 13 as soon as possible

Mathematics
1 answer:
Anna007 [38]2 years ago
3 0

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

12)we have 5 sides (n=5)

(5-2)*180=540

x=540-(105+135+92+87)=121

13)we have 8 sides (n=8)

(8-2)*180=1080

x=1080-(116+158+141+124+136+132+129)=144

I hope it will help

You might be interested in
3/5 -(-2/7) i need the value of the expression and work to show
trapecia [35]
The answer is 31/35 :)

7 0
3 years ago
Which of the following rational numbers is equal to 4 point 5 with bar over 5?
steposvetlana [31]
41/9 = 4.5 with a bar over 5 because it is repeating
5 0
3 years ago
Read 2 more answers
100+100 omg this is so tricky ooooo​
amm1812

Answer:

200

Step-by-step explanation:

100+

100

-----

200

8 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT
makvit [3.9K]

Answer:

BC = 22

Step-by-step explanation:

<b = <c  given

we now know it is an isosceles triangle

therefore AC = AB

AC=AB

2x-24 = x-2

subtract x from each side

2x-x-24 = x-2-x

x-24 =-2

add 24 to each side

x-24+24 = -2+24

x = 22



side BC = x

BC = 22


6 0
3 years ago
Read 2 more answers
A ladder is leaning against a building so that the distance from the ground to the top of the latter is 1 foot less than the len
masha68 [24]

Answer:

25\text{ feet}

Step-by-step explanation:

The ladder, ground, and building form a right triangle where the vertical distance between the top of the ladder and the bottom of the ground is one leg, the horizontal distance between the bottom of the ladder and the building is another leg, and the length of the ladder is the hypotenuse.

For any right triangle, the Pythagorean Theorem states that the sum of the squares of both legs is equal to the hypotenuse squared (a^2+b^2=c^2), where c is the hypotenuse.

Let the length of the ladder be \ell (hypotenuse of right triangle). The distance between the top of the ladder and the ground (vertical distance) can be represented as \ell -1.

From the Pythagorean Theorem, we then have:

7^2+(\ell-1)^2=\ell^2

Expand using (a-b)^2=a^2-2ab+b^2:

49+\ell^2-2\ell+1=\ell^2

Subtract \ell from both sides and add 2\ell to both sides:

49+1=2\ell

Combine like terms:

50=2\ell, \\2\ell =50

Divide both sides by 2:

\ell=\frac{50}{2}=\boxed{25\text{ feet}}

Therefore, the length of the ladder is 25 feet.

4 0
3 years ago
Other questions:
  • If line AB has a slope of -1/2 and is perpendicular to Line CD, then the slope of line CD is
    13·2 answers
  • Find the values of x and y.
    13·1 answer
  • For every person who has the flu there are 6 people who have only flu like symptoms if a doctor sees 40 patients determine appro
    15·2 answers
  • The table represents the speed of frog A at a frog jumping contest. Frog B travels 2 feet each second. If the course is 20 feet
    13·1 answer
  • What is the product of -3 1/4 and -1 1/2
    8·1 answer
  • Find the area of quadrilateral ABCD whose vertices are A(1,1) B(7,-3) C(12,2) D(7,21)
    5·1 answer
  • Which of the following statements is true?
    14·2 answers
  • PLZ HELP ME ITS ALMOST DUE
    8·1 answer
  • A bicycle is traveling at 16 miles per hour. How many feet will it cover in 35 seconds? Round your answer to the nearest tenth o
    13·1 answer
  • EVALUATE THE FOLLOWING:<br> A) 85!/82!<br> B) nC0<br> C) nPn
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!