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
blsea [12.9K]
4 years ago
15

Need help with two questions I am not good with this

Mathematics
1 answer:
pogonyaev4 years ago
4 0

Answer:

Part 12) Center\ (2,-3),r=2\ units, (x-2)^2+(y+3)^2=4

Part 13) m\angle ABC=47^o

Step-by-step explanation:

Part 12) we know that

The equation of a circle in center-radius form is equal to

(x-h)^2+(y-k)^2=r^2

where

(h,k) is the center of the circle

r is the radius of the circle

In this problem

Looking at the graph

The center is the point\ (2,-3)

The radius is r=2\ units

substitute in the expression above

(x-2)^2+(y+3)^2=2^2

(x-2)^2+(y+3)^2=4

Part 13) we know that

The measure of the external angle is the semi-difference of the arcs it covers.

so

m\angle ABC=\frac{1}{2}[arc\ DE-arc\ AC]

we have

arc\ DE=142^o

arc\ AC=48^o

m\angle ABC=\frac{1}{2}[142^o-48^o]

m\angle ABC=47^o

You might be interested in
Find the slope of the line that passes through the pair of points (6,-2) and (5,-4).
wel

Answer:

<h2>slope = -10/7</h2>

<u>Step-by-step explanation:</u>

co-ordinates = (6,-2) (5,-4)

slope = (y² - y¹) / (x² - x¹)

slope = (-4 - 6) / (5 - (-2))

slope = (-10) / (5+2)

slope = (-10) / 7

slope = -10 / 7

6 0
3 years ago
Read 2 more answers
What is x, the distance between points A and A'? D.15
Tom [10]

The value of x that fills the coordinate are 7 or -5

<h3>Distance between two points</h3>

The formula for calculating the distance between two points is expressed as:

D = √(x2-x1)² +(y2-y1)²

Substitute the given coordinates

10 = √(15-7)² +(1-x)²

100 = 8²  +(1-x)²

(1-x)² = 100 - 64

(1-x)² = 36

1- x = -6

x = 7 or -5

Hence the value of x that fills the coordinate are 7 or -5

Learn more on distance formula here: brainly.com/question/661229

#SPJ1

Complete question

<em>If the distance between two points (x, 7) and (1, 15) is 10, find the value of x.</em>

6 0
3 years ago
Please help me no links!!
Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

The line is parallel to y axis so

slope : undefined

y intercept : the line doesn’t intercept y axis

Equation : x = -6

4 0
3 years ago
For a new neighborhood, 1.4 acres of land will be split into 8 lots. How many acres of land
Iteru [2.4K]

Answer:

0.175

Step-by-step explanation:

8/1.4 = 0.175 which is how many each will have

5 0
3 years ago
How to do this problem 2 + 1/8 - 1 1/3
Svetllana [295]
17/8 -11/3
51/24-88/24
-37/24 simplified is -1 13/24
6 0
3 years ago
Other questions:
  • High of the following transformations does not result in a congruent figure
    11·1 answer
  • Help me please!
    9·1 answer
  • (-2.1) + (-0.1) how do you do this equation??
    11·1 answer
  • 8 - 2d = c 40 + 3d = 2​
    15·1 answer
  • Find the sum<br>please this is urgent ​
    9·1 answer
  • Find the difference. Write your answer in simplest form.<br><br> 4 - 1 1/4
    15·1 answer
  • Someone please help me out with these questions . I don’t get them at all.
    7·1 answer
  • Can someone help with Thai geometry
    11·1 answer
  • Factor the polynomial: x3 + x2 – 4x – 4
    8·2 answers
  • Should I write the answer as decimal or a whole number
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!