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
Sloan [31]
3 years ago
7

I need help with this question

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0

Step-by-step explanation:

Angle formed at the circumference of the circle is half of the angle formed at the center of the same circle.

Hence,

m\angle ADC =  \frac{1}{2} \times  m\angle ABC \\  \\  \therefore \: m\angle ADC =  \frac{1}{2} \times  40 \degree \\  \\ \therefore \:m\angle ADC =  20 \degree  \\  \\

You might be interested in
What are two subsets of real numbers that form the set of real numbers
Ulleksa [173]

Answer:

Two subsets that form set of real numbers

You can take positive numbers and negative numbers subset

One subset become (- infinity,0]

other subset (0, infinity)

4 0
3 years ago
All the sides of a hexagon become three times the original length. find the ratio of areas of the new and old hexagons.
Anastaziya [24]
To determine the ratio, we need to know the formula of the area of an hexagon in terms of the length of its sides. We cannot directly conclude that the ratio would be 3, the same as that of the ratio of the lengths of the side, since it may be that the relationship of the area and length is not equal. The area of a hexagon is calculated by the expression:

A = (3√3/2) a^2

So, we let a1 be the length of the original hexagon and a2 be the length of the new hexagon.

A2/A1 = (3√3/2) a2^2 / (3√3/2) a1^2
A2/A1 = (a2 / a1)^2 = 3^2 = 9

Therefore, the ratio of the areas of the new and old hexagon would be 9.
7 0
3 years ago
There are some beads in the box. 40% of them were blue and the rest were red. Adam used all the blue beads and 25% of the red be
Shalnov [3]

Answer:

65% of the beads were used to make the bracelet.

Step-by-step explanation:

40% of the beads were blue which means 60% of the beads were red. If all the blue beads were used that means 40% was used so you add the 25% of the red beads that were used which is why the answer is 65%.

7 0
3 years ago
Topic : Bounds<br> Website :Mathswatch
leva [86]

Answer:

C= 7.6761229314

Step-by-step explanation:

the formula is c=d/p

d= 324.7

p= 42.3

so ... this is how to calculate...

C = 324.7 km/ 42.3 litres

I hope it can help. thanks

8 0
2 years ago
The next 10 months Colin wants to save $900 for his vacation he plans to save $75 each of the first eight months how much must h
Makovka662 [10]
$300 because 300x2=600 then 75x8=300 and 600+300=900
5 0
4 years ago
Other questions:
  • How can you test to prove that one of your circuits is a series circuit?
    11·1 answer
  • The ratio of marbles to stones in a large pot 6 to 7. if there are 42 marbles, then how many stones are there
    11·1 answer
  • POINTS GIVE AWAYY !!!!!!! FOLLOW ME FOR MOREEEEEEE YEEEE​
    11·1 answer
  • Find the ordered pairs for the x- and y-intercepts of the equation 3x − 2y = 18 and select the appropriate option below.
    7·1 answer
  • Give an example of two numbers that both have six digits, but the greater number is determined by the hundreds place.
    10·1 answer
  • Part A picture above
    9·1 answer
  • Eva's coin purse contained 10 more dimes than nickels. The total value of the nickels and dimes was $10. How many coins of each
    5·1 answer
  • I need helppppppppppppp please
    7·1 answer
  • Last year. Samara practiced playing the violin for 26 hours the piano for 35 hours, the flute for 41 hours, and the drums for 18
    10·1 answer
  • Suppose that
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!