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
Lelechka [254]
4 years ago
7

Circle theorem - easy work

Mathematics
1 answer:
makvit [3.9K]4 years ago
8 0
Angle in a semi circle is 90°
<a = 180-90-<b = 90-28 = 62°

opposite angles of a cyclic quadrilateral sums up to 180°
<b + <a = 180
<b = 180-62
<b = 118°
You might be interested in
For problem 8, find the area of the shaded region. The polygon is a regular polygon. please show work.​
MissTica

Answer:

34.7791 [unit²].

Step-by-step explanation:

1) area of the circle is:

πr²;

2) area of the regular polygon is:

6*r²√3*0.25=1.5√3r²;

3) the required area:

πr²-1.5√3r²=r²(π-1.5*√3)=64*(3.1415-1.5*1.7321)=34.7791

4 0
3 years ago
Help -8(9n-10) -20 a. 90n+54 b. -72n+60 c. -17n – 80 d. -160n
Anna [14]

Answer:

1)  -8(9n-10) - 20

-72n + 80 - 20

-7n + 60

Can't factor

2) 90n+54

18(5n+3)

3) -72n+60

-12(6n-5)

4) -17n - 80

Can't factor

5) -160n

Can't factor

3 0
3 years ago
Read 2 more answers
F(x)= x2 + 6x - 40<br><br> find f (5)<br><br> 1. 15<br> 2. 20<br> 3. 10 <br> 4. 16
Charra [1.4K]
The answer is F equals 20
7 0
3 years ago
amy is building a house. the basement floor is at -15 feet, The roof of the house is above the ground 25 feet. Write an inequali
belka [17]

Answer:

25/15

Step-by-step explanation:

3 0
3 years ago
On a coordinate plane, point A is 7 units to the left. Point B is at (0, 0). Point C is 7 units to the right. Point D is 7 units
Katen [24]

Answer:

the guy above me is correct!!!

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • the senior class has 412 students and they are assigned to different homerooms. there are 28 students in the smallest homeroom a
    8·1 answer
  • Choose the constant term that completes the perfect square trinomial.<br><br> y2 + 1/2y
    5·1 answer
  • X^2+20x+11=-8 pls help me I need it now pls help
    10·1 answer
  • Mr. Loretta spends $4.83 on pens and notebooks. Pens cos $0.95 each. Notebooks cost $0.99 each. How many of each item does he bu
    14·1 answer
  • Free points: this is because of all the kindness I have seen on brainly:
    9·2 answers
  • I have a question on this math problem that I'm stuck on
    15·2 answers
  • Kenny wants to learn how to serve overhand in volleyball. When he practiced yesterday, he made 7 serves over the net for every 2
    13·1 answer
  • State if the triangles in each pair are similar. If so, state how you know they are similar
    13·2 answers
  • Simplify 0.2(-4x+5)-0.5(3x-11)
    15·1 answer
  • 2. Four less than six times a number is 32. Write and solve an equation.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!