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
serg [7]
3 years ago
5

Please could I have some help :)

Mathematics
2 answers:
EastWind [94]3 years ago
6 0
Answer is b x=128 you’re welcome
nirvana33 [79]3 years ago
5 0

Answer:

a) x = 128 degrees

b) Angle APD is the arc angle, which is equal to the central angle x subtended by the arc.  Therefore angle APD = 128 degrees (and not 116 degrees)

Step-by-step explanation:

Given:

attached diagram

ABC is a straight line

Solution:

a) Find x

ABC is a straight line

angle ABD = supplement of CBD = 180-CBD = 180-116 = 64 degrees.

x is the central angle of the arc APD

so angle ABD is the inscribed angle which equals half of the arc angle =>

angle ABD = x/2 = 64 degrees

Solve for x

x/2 = 64

x = 2*64

x = 128 degrees

b.

Angle APD is the arc angle, which is equal to the central angle x subtended by the arc.  Therefore angle APD = 128 degrees (and not 116 degrees)

You might be interested in
During an experiment, some water was removed from each of the 6 water tanks. If the standard deviation of the volumes of water i
Julli [10]

Answer:

First statement is correct.

Step-by-step explanation:

If we add or subtract a constant to each term in a set:  Mean will increase or decrease by the same constant.  Standard Deviation will not change.

If we increase or decrease each term in a set by the same percent (multiply all terms by the constant):  Mean will increase or decrease by the same percent.  Standard Deviation will increase or decrease by the same percent.

For example:

Standard Deviation of a set: {1,1,4} will be the same as that of {5,5,8} as second set is obtained by adding 4 to each term of the first set.

That's because Standard Deviation shows how much variation there is from the mean. And when adding or subtracting a constant to each term we are shifting the mean of the set by this constant (mean will increase or decrease by the same constant) but the variation from the mean remains the same as all terms are also shifted by the same constant.

So according to this rule, statement (1) is sufficient to get new Standard Deviation, it'll be 30% less than the old.. As for statement (2) it's clearly insufficient as knowing mean gives us no help in getting new Standard Deviation.

6 0
3 years ago
Help please fast!!!!!!!1
Marianna [84]

Answer:b

Step-by-step explanation: i thinks its b

4 0
3 years ago
The town of Madison has a population of 25000. the population is increasing by a factor of 1.12 each year.
Lena [83]

Answer:

P(t)=25000(1.12)^t

Step-by-step explanation:

If we start with the initial population size, 25,000 people, and keep multiplying by 1.12 this function gives us the population of Madison t years from now: P(t)=25000(1.12)^t

4 0
2 years ago
Read 2 more answers
Will the change in temp be positive or negative
tigry1 [53]
Negative, You'll have to explain the why part though,

5 0
3 years ago
Read 2 more answers
I had $3.00. My Mom gave me $10.00. My Dad Gave me $30.00. My Aunt & Uncle gave me $100.00. I had another $7.00. How much di
zysi [14]

Answer:

150

Step-by-step explanation:

i did addition so yeah

7 0
3 years ago
Other questions:
  • Can anyone fill this sheet, I'm too confused by this subject and don't understand it. Any help would be much appreciated.
    12·1 answer
  • The graph shows equivalent ratios. Frank plotted another point with a y-value of 18. What is the x-value of that point?
    6·1 answer
  • What is 280 to the 0 power?
    5·2 answers
  • How do i graph 10x + 2y > 20
    12·1 answer
  • The first term of an arithmetic sequence is -3 and the 15th term is 53. What is the common difference of the sequence?
    6·1 answer
  • Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and
    8·1 answer
  • Match each expression it to an equivalent expression
    8·1 answer
  • Solve <br>x+y=5 and 3x-5y=7​
    6·1 answer
  • /gpf-kuok-frr pls come here ​
    12·1 answer
  • Please help I need P factored completely <br> P(x)=x^4+50x^2+625
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!