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
natka813 [3]
3 years ago
9

Quadrilateral ABCD is inscribed in a circle. Angle B measures (x – 5)°, and angle D measures (3x + 5)°. Find x.

Mathematics
2 answers:
Mamont248 [21]3 years ago
8 0
Angle B is opposite to angle D.
Since quadrilateral ABCD is inscribed in a circle, it’s a cyclic quadrilateral.
The sum of the opposite angles of a cyclic quadrilateral is 180 degrees.
(x-5)+(3x+5)=180
4x=180
x=180/4
x=65 degrees
zepelin [54]3 years ago
7 0

Answer: x = 45

Step-by-step explanation:

Quadrilaterals inscribed in a circle have all four vertices on the circle.

A unique property of these types of quadrilaterals is their angle measures: Opposite angles of inscribed quadrilaterals will always add up to 180 (they are supplementary angles).

As such, the inscribed quadrilateral ABCD has opposite angles at AC and BD. Because the quadrilateral is inscribed, this means that the angles A + C and the angles B + D will equal 180 degrees. We can represent the angles measures for B and D in an equation where B + D = 180:

(x-5)+(3x+5)=180\\\\4x = 180\\\\x=45

When x = 45, the angle B is 40 degrees and the angle D is 140 degrees.

You might be interested in
Which graph represents the function f(x) = |x|?
Brut [27]

Answer:

Step-by-step explanation:

the first one

3 0
3 years ago
Read 2 more answers
Solve the x <br> 1/3x + 5&gt; 10
kotykmax [81]

Answer:

The solution to the inequality is:

\frac{1}{3}x+5>10\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x>15\:\\ \:\mathrm{Interval\:Notation:}&\:\left(15,\:\infty \:\right)\end{bmatrix}

The solution graph is also attached below.

Step-by-step explanation:

Given

We are given the expression

\frac{1}{3}x+5>10

To determine

Solve for x

Given the expression

\frac{1}{3}x+5>10

Subtract 5 from both sides

\frac{1}{3}x+5-5>10-5

Simplify

\frac{1}{3}x>5

Multiply both sides by 3

3\cdot \frac{1}{3}x>5\cdot \:3

Simplify

x>15

Thus, we conclude that:

x>15

Therefore, the solution to the inequality is:

\frac{1}{3}x+5>10\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x>15\:\\ \:\mathrm{Interval\:Notation:}&\:\left(15,\:\infty \:\right)\end{bmatrix}

The solution graph is also attached below.

5 0
3 years ago
Drugs+Kids=..................<br><br> Very tough question guys
ycow [4]

Answer:

= desaster

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please Help Fast!!!!!​
Gnoma [55]
Hey I just saw this do u need Help Still or no my fault gang nobody helped you out at all
3 0
2 years ago
一。<br><br> Nhshdjsjsjsnsnsjsjbxxjd
Natasha2012 [34]

Answer:

fhakicjairud we htghjdjc_______

3 0
2 years ago
Other questions:
  • the relationship between money earned and hours worked is linear. joe computes the slope between (4, 30) and (12, 90), then comp
    15·2 answers
  • Mrs. Smith’s wrote the number 43.38 on the board for a class discussion on place value. Explain the relationship between the two
    5·2 answers
  • The Martins drove the 468 miles between Memphis, Tennessee and Cincinnati, Ohio in one day. If they left Memphis at 7 a.m. and a
    5·1 answer
  • Find the sum of the first 31 terms of the following series, to the nearest integer.<br> 5,14,23,..
    14·1 answer
  • What is the problem to h-16&lt;24=
    11·1 answer
  • One of the largest cookies on record had a diameter of 78.75 feet. What is the approximate circumference of the cookie? Use 3.14
    13·1 answer
  • What is a reasonable estimate for the solution? O (1,-3/4) O (-3/4,1) O (-1,3/4) O (3/4,-1)​
    11·1 answer
  • A trucker buys crates of apples and pears to sell at a Farmer's Market. The apples cost $6 per crate and the pears cost $5.50 pe
    9·1 answer
  • Suppose that 70% of the orders on a particular website are shipped to the person who is making the order and the remaining 30% a
    14·1 answer
  • Who’s smart ,but it’s math
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!