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
sergij07 [2.7K]
3 years ago
10

O is the center of the given circle. The measure of angle O is 128°. The diagram is not drawn to scale.

Mathematics
2 answers:
kati45 [8]3 years ago
6 0
We know that

<span>The measure of the external angle is the semi difference of the arcs that it covers.
so
see the picture attached to better understand the problem

m AB=128</span>°--------> by central angle
<span>m ACB=360</span>°-128°-----> m ACB=232°<span>
</span>∠x=(1/2)*[m ACB-m AB]<span>
</span>∠x=(1/2)*[232-128]-----> ∠x=(1/2)*104°-----> ∠x=52°
<span>
the answer is
</span>∠ x is 52°<span>
</span>

Xelga [282]3 years ago
6 0
The answer is 52°

Hope I helped :)
You might be interested in
What is the slope of a line whose equation is 5y + 6 x - 2 =0
RoseWind [281]
5y= -6x+2
5y/5 =-6x/5 +2/5
y = -1.2x +0.4

the slope is -1.2 and y intercept is 0.4
8 0
3 years ago
Read 2 more answers
Find the lateral area of the regular prism with height h, if the base of the prism is: Equilateral triangle with the side 4 cm a
Shtirlitz [24]

Equilateral triangle with the side 4 cm and h=2.5 cm

In equilateral triangle all sides are equal

so all sides are equal in the base of the prism

lateral area of the prism = Perimeter of the base * height

Perimeter of the base equilateral triangle = side + side + side

lateral area of the prism =(side + side + side) * height

= (4+4+4) * 2.5

= 30 cm^2

lateral area of the prism = 30 cm^2

6 0
2 years ago
Read 2 more answers
A bike shop sells you a bicycle for $63 and a helmet for $21. The total cost is 150% of what the shop spent originally. How much
marshall27 [118]
The bike shop made $28 dollars profit. First, you add the cost of the bike and the cost of the helmet, which is $84. Then you divide that by 150 to get what 1% would be, which is .56. Then you multiply that by 50%, which is the part of the price that the shop profited, which is $28.
7 0
3 years ago
Find the zero of the function /(x) = 5x-3.
Bad White [126]

Answer:

3/5

Step-by-step explanation:

Set it equal to 0

5x-3=0

Then solve for x

5x=3

x=3/5

Check

5(3/5) - 3

3-3

0

4 0
3 years ago
Lily is cutting a piece of yarn into 3 (three) pieces. The 2nd piece is 3 times as long as the 1st piece, while the 3rd piece is
STatiana [176]

Answer:

The length of the first piece = 41 cm

Step-by-step explanation:

Let the length of the first piece = a

Let the length of the second piece = b

Let the length of the third piece = c

we are given the following:

b = 3a . . . . . (1)     (The 2nd piece is 3 times as long as the 1st piece)

c = 6 + a  . . . . (2)    (the 3rd piece is 6 centimeters longer than the 1st piece)

a + b + c = 211 . . . . . (3)    (  the yarn has a total length of 211 centimeters)

Next, let us eliminate two variables, and this can easily be done by substituting the values of b and c in equations 1 and 2 into equation 3. this is done as follows:

a + b + c = 211

a + (3a) + (6 + a) = 211       ( remember that   b = 3a; c = 6 + a)

a + 3a + 6 + a = 211

5a + 6 = 211

5a = 211 - 6 = 205

5a = 205

∴ a = 205 ÷ 5 = 41 cm

a = 41 cm

Therefore the length of the first piece (a) = 41 cm

now  finding b and c

substituting a into equation 1 and 2

b = 3a

b = 3 × 41 = 123

∴ b = 123 cm

c = 6 + a

c = 6 + 41 = 47

∴ c = 47 cm

6 0
3 years ago
Other questions:
  • You walk 2 miles in 1/2 hour ate that rate , how long will it take to walk 3 miles
    15·2 answers
  • I'm in desperate need for help whoever does gets 30 points
    12·1 answer
  • If the scale on a map is 1/4 in. = 50 miles, how many miles do 3 3/8 inches represent?
    12·2 answers
  • Simplify 1) 7x+5-4x-16 2) 5(1-4x)+2x-40
    8·1 answer
  • What would the answer be to these questions. Put it in order please
    11·1 answer
  • Write an inequality for the given statement: 4 times the sum of a number and 3 is at least 28.
    11·1 answer
  • 1a. 182 Freshmen were surveyed on whether they participate in a sport. 110 said yes, 40 boys said no, 90 girls were in the surve
    10·1 answer
  • What is the surface area of the triangles prism?? 13 points please give the right answer
    15·1 answer
  • What is the slope of y=-5+4xy=−5+4xy, equals, minus, 5, plus, 4, x?
    7·2 answers
  • I need you help, help me pleaseeeee
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!