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
elixir [45]
3 years ago
8

What is the value of x?

Mathematics
2 answers:
tangare [24]3 years ago
8 0

x = 16.

Hope this helps!

nadezda [96]3 years ago
8 0

Answer:

x = 16

Step-by-step explanation:

Since the triangles are similar then the ratio of corresponding sides are equal, that is

\frac{x}{4} = \frac{20}{5} ( cross- multiply )

5x = 80 ( divide both sides by 5 )

x = 16

You might be interested in
Two families went to Rollercoaster World.
Alona [7]

Answer:

Children ticket cost $30 and adult ticket costs $40.

Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170     Eqn 1

4x+6y=360    Eqn 2

Multiplying Eqn 1 by 3

3(3x+2y=170)

9x+6y=510      Eqn 3

Subtracting Eqn 2 from Eqn 3

(9x+6y)-(4x+6y)=510-360

9x+6y-4x-6y=150

5x=150

Dividing both sides by 5

\frac{5x}{5}=\frac{150}{5}\\x=30

Putting x=30 in Eqn 1

3(30)+2y=170

90+2y=170

2y = 170-90

2y = 80

Dividing both sides by 2

\frac{2y}{2}=\frac{80}{2}\\y=40

Hence,

Children ticket cost $30 and adult ticket costs $40.

6 0
3 years ago
Vicki would like to estimate the probability of tails coming up fewer than 2 times in 3 coin flips. To do this, she has a comput
nikitadnepr [17]
Your answer would be 2/5! 
7 0
3 years ago
Read 2 more answers
Help please it geometry plz
kotegsom [21]

Answer and Step-by-step explanation:

1. square and 20 ft because each side is 5 ft and 5+5+5+5=20

2. triangle and 25 ft because 12+5+8=25 ft

3. trapezoid but Im not sure what the side lengths are for that one so i dont know what the perimeter is

4. Parallelagram and the same as what happened with number three

5. hexagon and 8+8+8+8+8+8= 48 ft

8 0
3 years ago
Graph f(x) = x2 + 2x - 3, label the function’s x-intercepts, y-intercept and vertex with their coordinates. Also draw in and lab
Semenov [28]
<h2>Answer with explanation:</h2>

The given function : f(x)=x^2+2x-3

Using completing the squares, we have

f(x)=x^2+2x+1-1-3        [∵ (x+1)^2=x^2+2x+1]

f(x)=(x+1)^2-4      (1)

Comparing (1) to the standard vertex form f(x)=(x-h)^2+k , the vertex of function is at (h,k)=(-1,-4)

For x-intercept, put f(x)=0 in (1), we get

0=(x+1)^2-4\\\\\Rightarrow\ (x+1)^2=4    

Square root on both sides, we get

x+1=\pm2\\\\x+1=-2\ or\ \ x+1=2\\\\=x=-3\ \ or\ x=1

∴ x intercepts : x= (-3,0) and (1,0)

For y-intercept put x=0 in (1), we get

f(1)=(1)^2-4=1-4=-3  

∴ y intercept : (0,-3)

Axis of symmetry : \dfrac{-b}{2a}

In f(x)=x^2+2x-3 , a=1 and b=2

Axis of symmetry=\dfrac{-2}{2(1)}=-1

5 0
3 years ago
If a diameter intersects a chord of a circle at a perpendicular, what conclusion can be made?
Agata [3.3K]

If a diameter intersects a chord of a circle at a perpendicular then the chord is bisected.

<h3>What is the relation between the chord and diameter of a circle?</h3>
  • The segments of a circle whose endpoints are on its perimeter are called chords.
  • A circle's diameter is the chord that passes across its center.
  • The circle's longest chord equals its diameter.
  • Any line that is perpendicular to a chord on the circle cuts it in half and goes through the center.

The solution to the problem:

A circle's chord is intersected perpendicularly by its diameter, which also passes through the center of the circle. The chord and diameter are perpendicular. Any line that is perpendicular to a chord on the circle and passes through its center divides it. The chord is divided equally by the diameter.

Therefore, the chord is bisected.

Learn more about diameter and chord at: brainly.com/question/12934647

#SPJ4

7 0
2 years ago
Other questions:
  • Which of the following numbers has a prime factorization of 2 x 3 x 7?
    7·2 answers
  • A family wants to purchase a house that costs $185,000 . They plan to take out a $135,000 mortgage on the house and put $50,000
    14·2 answers
  • If you borrow $400 for 2 years at an annual interest rate of 15%, how much will u pay altogether? ​
    6·1 answer
  • Caillou buys 76 toy cars. His sister Rosie steals 23/12 of toy cars Caillou. How many cars does he have left write it in fractio
    12·2 answers
  • A function is shown in the table below. What equation represents this function?
    8·1 answer
  • PLEASE ASAP HELP MEE!!!!!!!<br> round 0.10236111111 to the nearest hundredth
    15·2 answers
  • A<br> 24<br> B<br> у<br> 16<br> 60°<br> D<br> 3х
    9·1 answer
  • Emily purchased 5 packages of bottled water for $14.95. Each package of bottled water cost the same amount.What is the cost per
    8·1 answer
  • Help pls i have 5 minss, no links
    10·2 answers
  • How do you simplify 1/2+2/5
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!