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
Bumek [7]
3 years ago
8

Help Review of linear pair vertical and complementary

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

x = 15

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

3+6x   + 5x+12 = 180

Combine like terms

11x+15 = 180

Subtract 15 from each side

11x+15-15 =180-15

11x = 165

Divide by 11

11x/11 =165/11

x =15

You might be interested in
What is the value of x in this equation: 4x+5=3x+4<br><br>​
zavuch27 [327]
Move everything to one side, it becomes negative
3x+4-4x-5
=-x-1
6 0
2 years ago
Read 2 more answers
350,000 is what percent of 7 million​
n200080 [17]

Answer:

5

Step-by-step explanation:

8 0
3 years ago
Can someone please help me?
Klio2033 [76]

Answer:

yes i can

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In a class of 6, there are 2 students who forgot their lunch. If the teacher chooses 2 students, what is the probability that bo
zimovet [89]

Answer:

1/15

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

2/6 x 1/5 = 1/15

8 0
2 years ago
A square is formed by joining the midpoints of alternate sides of a regular octagon with side length 14 in. Find the shaded area
Darya [45]

Answer:

98(1 + 2√2) in² ≈ 375 in²

Step-by-step explanation:

Assuming the shaded region is outside of the square and inside of the octagon, we can find the area by subtracting the area of the square from the area of the octagon.

The area of a regular octagon is 2 (1 + √2) s².  We can show this by finding the area of the square outside of the octagon, and subtracting the triangles in the corners:

(s + √2 s)² − 4 (½ (½√2 s)²)

(1 + √2)² s² − 4 (½ (s²/2))

(1 + 2√2 + 2) s² − s²

2 (1 +√2) s²

The diagonal of the inner square is equal to the width of the octagon, (1+√2) s.  So the side length of the square is:

½√2 (1+√2) s

½(2+√2) s

The area of the square is therefore:

(½(2+√2) s)²

¼(2+√2)² s²

¼(4+4√2+2) s²

¼(6+4√2) s²

½(3+2√2) s²

The area of the shaded region is therefore:

2 (1 +√2) s² − ½(3+2√2) s²

½ s² (4 (1 +√2) − (3+2√2))

½ s² (4 + 4√2 − 3 − 2√2)

½ s² (1 + 2√2)

The side length of the octagon is s = 14 in, so the area is:

½ (14 in)² (1 + 2√2)

= 98(1 + 2√2) in²

≈ 375 in²

3 0
3 years ago
Other questions:
  • To make 5 Apple pies you need about 2 pounds of apples. How many pounds of apples do you need to make 20 Apple pies
    10·2 answers
  • 4. En el Vivero de Arturo hay 226
    7·1 answer
  • The equation y = 11x shows that a boat travels at a speed of 11 km/h. Which ordered pair satisfies the equation y = 11x?
    14·1 answer
  • HELPPPPPPPP!!!!!!!!!!
    8·1 answer
  • Bill drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 7 hours. When Bill
    11·1 answer
  • AB, CD, and EF intersect at O. If CD is perpendicular to EF and m
    6·1 answer
  • PLEASEE HELP I NEED THIS ASAP!!!!​
    11·1 answer
  • +
    7·2 answers
  • Write words in numbers in words 123,115,027​
    10·1 answer
  • Need your guyzes halp, no false answers and I will give you most of my points
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!