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Dmitrij [34]
3 years ago
10

Is 78 degrees the correct answer?

Mathematics
2 answers:
Zepler [3.9K]3 years ago
8 0
We have 2 intersecting chords so:
Whenever 2 chords intersect,
Angle AED = Angle BEC = 66 degrees
66 degrees = .5 * (arc AD + Arc BC)
66 degrees = .5 * (arc AD + Arc BC)
66 degrees = .5 * (54 + Arc BC)
66 degrees -27 = .5 Arc BC
39 degrees = .5 Arc BC
Arc BC = 78 degrees
So, you are correct Ranya2

Source:
http://www.1728.org/circangl.htm


kipiarov [429]3 years ago
3 0
Yes as long as the sum of all the numbers equals 360°
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Help me out pleaseee ​
spayn [35]

Answer:

Option B is the correct choice.

Step-by-step explanation:

The graph is attached below.

We have to find the x intercept meaning the value of the point onx-axis when y=0

So we will put the value of zero (0) instead of y in our given equation.

So here we have solved it algebraically.

y=\frac{3}{4}x-3

Putting y=0

0=\frac{3}{4}x-3

0=\frac{3x-12}{4}

Multiplying 4 both sides.

0=3x-12

Adding 12both sides.

12=3x

Dividing with 3 both sides.

x=\frac{12}{3}=4

So the x-intercept of the given equation is 4 which can be written as (4,0) in terms of coordinates.

Option B (4,0) is the correct choice.

8 0
2 years ago
A credit card customer owes $325.60 they charge another purchase of $45.20. how much money does the customer owe?
Burka [1]
$367.80 because you have to add up the purchase the owe and the other one too, then you get your answer
8 0
3 years ago
Read 2 more answers
Bradley estimated the height of a tree at 2.5 meters. Carla estimated that tree's height at 8 feet.
vredina [299]

Answer: 4.1 feet : 4 feet

Step-by-step explanation:

From the question, we are informed that Bradley estimated the height of a tree at 2.5 meters. Carla estimated that tree's height at 8 feet.

The conversion ratio be used to compare Bradley's and Carla's estimates of the tree's height when measured in feet goes thus:

Since 1 feet = 0.305 meters

2.5 meters will be = 2.5/0.305 = 8.2 feet

Therefore the conversion ratio will be:.

= 8.2 : 8

Reducing to lowest term will be

= 4.1 feet : 4 feet.

= 4.1 : 4

4 0
3 years ago
Ples help A square is a rectangle. always sometimes never
MakcuM [25]

By definition, a rectangle is:

Any four sided polygon (quadrilateral) that contains four right angles.

By extension, a square is:

Any rectangle where all sides are of the same, or equal, length.

<h3>So yes, a square is always a rectangle.</h3>
6 0
3 years ago
Read 2 more answers
PLEASE HELP VERY URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
diamong [38]

Q1.  Look at the picture.

C.\\y=-\dfrac{1}{3}x+3\\\\y=2x-4

Q2. Look at the picture.

A.\ 4-t

Q3.

Put the value of x = 2 to the equation 3x + y = 5:

3(2)+y=5

6+y=5       <em>subtract 6 from both sides</em>

y=-1\\\\F.\ -1

Q4.

\left\{\begin{array}{ccc}n=3m-11&(*)\\2m+3n=0&(**)\end{array}\right

Substitute (*) to (**):

2m+3(3m-11)=0            <em>use distributive property</em>

2m+(3)(3m)+(3)(-11)=0

2m+9m-33=0       <em>add 33 to both sides</em>

11m=33      <em>divide both sides by 11</em>

m=3

Put the value of m to (*):

n=3(3)-11\\\\n=9-11\\\\n=-2

C. (3,\ -2)

Q5.

w - width

3w - length

24 in - the sum of length and width

The equation:

w+3w=24

4w=24           <em>divide both sides by 4</em>

w=6\ in

3w=3(6)=18\ in

J.\ 18\ inches


7 0
2 years ago
Read 2 more answers
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