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
Papessa [141]
3 years ago
15

Can someone help me out with this question? The question is about circle diameters. I'm unfamiliar with finding the length of th

e arc. If someone answers can you explain the answers step by step, thank you!

Mathematics
1 answer:
Nady [450]3 years ago
7 0

Answer:

a) m arc AD = 145

b) D = 10

Step-by-step explanation:

a) mAD can be found because triangle OCM can be shown to be congruent to triangle ODM.

The angle AOD is supplementary to DOB which we just showed to be congruent to the known 35° angle COB. Therefore AOD = 180 - 35 = 145°

The arc length is identical to the arc angle when measured between radii.

b) The radius OC = √(OM² + (CD/2)² = √(3² + 4²) = 5.

Diameter is twice radius = 10

You might be interested in
The high temperature on Friday was 8 degrees above zero. The low temperature was 3 degrees below zero. Which expression gives th
alexandr1967 [171]

Answer:

Option 2, (-3+8)/2

Step-by-step explanation:

Average: Sum of two numbers/ How many numbers

Sum: -3+8

Amount of Numbers: 2

(-3+8)/2

8 0
3 years ago
What value of k makes the equation true? (5a^2 b^3)(6a^k b)=30a^6 b^4
Ratling [72]

we are given

(5a^2 b^3)(6a^k b)=30a^6 b^4

Firstly, we will simplify left side

and then we can solve for k

Left side is

(5a^2 b^3)(6a^k b)

we can arrange like terms

(5a^2 6a^k)(b^3 b)

(5\times 6 a^2a^k)(b^3 b)

(30 a^2a^k)(b^3 b^1)

now, we can use property of exponent

a^m \times a^n=a^{m+n}

(30 a^{2+k})(b^{3+1})

30a^{2+k}b^{4}

now, we can equate it with right side

and we get

30a^{2+k}b^{4}=30a^6 b^4

We can see that both sides have 30 , a and b

and they are equal

so, exponent of a must also be equal

2+k=6

now, we can solve for k

2+k-2=6-2

k=4................Answer


3 0
4 years ago
Read 2 more answers
Nonpermissable replacement for a 4/9a?
My name is Ann [436]
If a=0, then the denominator is equal to 0.  Since you cannot divide by zero, you are not allowed to do this.
Hope This helps!

8 0
3 years ago
roberto needs to convert the equation 3x + y = -5 into slope-intercept form. why is able to add or subtract the variable term fr
dimulka [17.4K]
3x + y = -5

-3x + 3x + y = -3x - 5

y = -3x - 5
7 0
3 years ago
What is 24% of 80 plzz help
Komok [63]

Answer:19.2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • The bacteria in a 11​-liter container double every 3 minutes. After 57 minutes the container is full. How long did it take to fi
    7·1 answer
  • .......................................................
    10·1 answer
  • What is the sum of 1-2 and V-18?
    6·1 answer
  • You know what to do :T solve pls
    7·1 answer
  • I need this to be specific and quick! 35 points!
    14·1 answer
  • What is the GCF of the following terms?
    14·2 answers
  • An earthquake strikes in an isolated area is without food or water. Three crews arrive. One can dispense needed supplies and 35
    6·1 answer
  • Omar keeps his sneaker collection carefully arranged on the floor of his closet. 8 pairs of
    10·2 answers
  • Someone please help me thank you
    12·1 answer
  • I need help:) kinda urgent but ILL MARK brainliest!! :)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!