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
coldgirl [10]
2 years ago
13

What are a, b, c and d​

Mathematics
1 answer:
GuDViN [60]2 years ago
7 0

Answer:

Step-by-step explanation:

4 g.

c=42

a=b=d

a+b+42=180

a+a=180-42

2a=138

a=138/2=69

a=69

b=69

c=42

d=69

5a.

a=30

angle O=180-(a+30)=180-(30+30)=180-60=120°

d=80

angle O=180-(d+80))=180-(80+80)=180-160=20°

central angle O of middle triangle=180-(120+20)=180-140=40°

b=c

b+c+40=180

b+b=180-40

2b=140

b=140/2=70

b=70°

c=70°

You might be interested in
Which of the following is an equivalent expression to the given expression using the commutative property of addition?
olga nikolaevna [1]
I think it’s the second equation (2x)y+5x
7 0
3 years ago
Read 2 more answers
A wood stove burns 4 logs in 2 hours how many logs burn in 9 hours ?
ziro4ka [17]

Answer:

18 logs.

Step-by-step explanation:

Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.

4:2= 2 logs per hour

2*9=18 logs per 9 hours.


8 0
4 years ago
Read 2 more answers
The first three terms of a geometric sequence are as follows.
Katen [24]

Answer:

3 and 1

Step-by-step explanation:

the sequence is dividing each # by 2

4 0
3 years ago
Write in slope intercept form an equation of the line that passes through the given points. (-1,7) , (3,-1)
Tcecarenko [31]

Answer! :

y = -2x + 5

Step by Step! :

slope intercept form:

y = mx + b

m being slope, b being the y intercept.

To find the slope, use this equation:

y^2 - y^1 / x^2 - x^1

Plug in your points.

(-1) - (7) / (3) - (-1)

-8 / 4

-2 is your slope! (y = -2x + b)

To solve for b, plug in any one of your points and solve for b. Let's use (3, -1)

-1 = -2(3) + b

-1 = -6 + b

5 = b

Your new equation is...

y = -2x + 5

6 0
2 years ago
Please I need answers​
zhenek [66]

Answer:

9, 11, 1, 0, 11

There's a patern

5 0
4 years ago
Read 2 more answers
Other questions:
  • The perimeter of a rectangle is 74 cm. the length of the rectangle is 4 more than twice the width. find the length and width of
    7·1 answer
  • I forgot the answer
    6·1 answer
  • The graph below represents the solution set of which inequality
    10·2 answers
  • Given: Q = 7m + 3n, R = 11 - 2m, S = n + 5, and T = -m - 3n + 8. <br><br> Simplify Q + S - T.
    5·1 answer
  • How much will the window cost?
    6·1 answer
  • PLEASE HELP ME with THIS please explain to Thank You and please
    9·1 answer
  • If △CAT∼△DOG<br> m∠C=105∘<br> m∠T=(x+11)∘<br> m∠O=3x∘<br> Find m∠O
    9·1 answer
  • Divide. Reduce the answer to lowest terms.<br><br> 2 1/9 ÷ 3 1/3
    13·2 answers
  • In a lab experiment, 2100 bacteria are placed in a petri dish. The conditions are such
    15·1 answer
  • What is the value of x.<br> 35<br> 50<br> Not enough info.<br> 95
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!