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
Find the volume of the cone.<br> Either enter an exact answer in terms of pi or use 3.14 for pi
Amanda [17]

Answer:

Volume is 20.93333333 units^3

Step-by-step explanation:

I used 3.14 for pi

Look at the attachment

3 0
3 years ago
Read 2 more answers
1.7 In the following diagram, angle 7 equals 61°.
gladu [14]
1.7) < 7 and < 8 form a linear pair....which means, when added, they equal 180 degrees. So if < 7 = 61, then < 8 = (180 - 61) = 119 <=

1.8) angles that are supplementary will add up to 180. So if one of the angles is 38, then the other one is (180 - 38) = 142 <==

1.9) < 3 = < 5 (vertical angles are congruent)
1.10) < 2 = < 8 (vertical angles are congruent)
1.11) < 7 = < 1 (vertical angles)
1.12) < 6 = < 4 (vertical angles)
7 0
3 years ago
Read 2 more answers
What’s the answer to number 1?
Darya [45]

Answer:

increase = New number - original number

inc % = (increase ÷ original number) *100%

Step-by-step explanation:

133 - 76 = 56

inc % = 57 ÷ 76 = 0.75

0.75*100% = 75%

7 0
3 years ago
A pine tree is 64 feet 3 inches tall. How many inches tall is the pine tree?
Sindrei [870]

Answer:

3 inches you are right

Step-by-step explanation:

4 0
3 years ago
Wren is at the grocery store buying fruit. She buys x pounds of apples for $1.68 per pound. She buys 2 fewer pounds of grapes fo
Soloha48 [4]

Answer:

The number of pounds of apples is 4.5 and the number of pounds of grapes is 2.5

Step-by-step explanation:

Let

x ------> the number of pounds of apples

(x-2) -----> the number of pounds of grapes

we know that

Solve for x

 

so

therefore

The number of pounds of apples is 4.5 and the number of pounds of grapes is 2.5

4 0
3 years ago
Read 2 more answers
Other questions:
  • Round 32.574 to the nearest hundredths
    8·2 answers
  • 15 POINTS AND BRAINLIEST
    12·2 answers
  • PLEASE help me with this question! No nonsense answers please. This is really urgent.
    7·1 answer
  • answer whether or not 2/3 of 3/4 of a pan of brownies is the same amount as 3/4 of 2/3 of a pan of brownies
    9·1 answer
  • Kelly has 55 different books. She gives 20 of the books to her friend. How many books does kelly have now?
    5·1 answer
  • Whats the answer to log x+2 (9x) = 2
    10·2 answers
  • The speed of a boat in still water is 10 km/hr. If it can travel 78 km downstream and 42 km upstream in the same time, the speed
    11·1 answer
  • A circular table has a radius of 5cm. Decorative trim is placed along the outside edge. How
    6·1 answer
  • I need help ASAP please. If answers right I’ll give brainey
    10·1 answer
  • Okie help help math math quiz plesse
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!