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
Lady bird [3.3K]
3 years ago
6

In $\triangle abc$, points $x$ and $z$ are on $\overline{ab}$ and $y$ is on $\overline{ac}$ such that $\overline{xy}\parallel \o

verline{bc}$ and $\overline{zy}\parallel \overline{xc}$. if $az = 8$ and $zx = 4$, then what is $xb$?

Mathematics
1 answer:
svp [43]3 years ago
7 0

To solve this problem, we must imagine the triangles and parallel lines which are formed. It is best to draw the triangle described in the problem so that you can clearly understand what I will be talking about.

The first step we have to do is to make an equality equation in triangle ABC.

In triangle ABC, we are given that lines XY and BC are two parallel lines (XY || BC).  Therefore this means that:

AX / XB = AY / YC                                              ---> 1

 

The next step is to make an equality equation in triangle AXC.

We are given that lines ZY and XC are two parallel lines (ZY || XC). Therefore this also means that:

AZ / ZX = AY / YC                                               ---> 2

 

Combining 1 and 2 since they have both AY / YC in common:

AX / XB = AZ / ZX

we are given that:

AZ = 8, ZX = 4 therefore AX = AZ + ZX = 12, hence

12 / XB = 8 / 4

XB = 6

You might be interested in
What’s the Perimeter and the Area
Leno4ka [110]

Triangle Perimeter: Add up the sides of the triangle.

26 + 24 + 10 = 60

The triangles perimeter is 60.

Triangle Area: height * base divided by 2

10 * 24 = 240

240/2 = 120

The triangles area is 120.

3 0
3 years ago
SOMEONE PLEASE HELP ME! I promise i will mark brainlest, but i need the right answer for this. help is much appreciated <3
tester [92]

Answer:

the third choice

Step-by-step explanation:

I haven't done those questions in a long time so I would double check. But I think its choice C because 0 has two functions, and I'm pretty sure that a number can only have 1 output, therefore C is not a function..

5 0
2 years ago
R, S, Q and P are the midpoints of OC, CB, BA and OA respectively.
Stolb23 [73]

Answer:

See below.

Step-by-step explanation:

Draw segment OB.

In triangle OBC, points R and S are the midpoints of sides OC and BC, respectively. That makes RS parallel to OB.

In triangle OBA, points P and Q are the midpoints of sides OA and BA, respectively. That makes PQ parallel to OB.

Since segments RS and PQ are parallel to segment OB, then RS and PQ are parallel to each other.

3 0
2 years ago
Esmerelda flips a coin and draws a card. What is the possibility that she gets “heads” and a black card?
elena55 [62]
The possibility of flipping heads is 1 in 2 (1/2)
the possibility of pulling a black card is 26 in 52 (26/52) which equals 1 in 2 (1/2)
multiply those together and you get 1 in 4, 1/4, or a 25%
7 0
2 years ago
Read 2 more answers
Triangle XYZ was dilated by a scale factor of 2 to create triangle ACB and cos ∠X = 2.5 over 5 and 59 hundredths. Triangles XYZ
adell [148]

Dilation involves changing the size of a shape

<h3>How to determine the relationship between the trigonometry ratios</h3>

From the question, we understand that:

The dilation of triangle XYZ gives triangle ACB

This means that, the following are corresponding points

  • Points X and A
  • Points Y and C
  • Points Z and B

The above means that:

The relationships between the trigonometry ratios of both triangles are:

cos(X) = cos(A), cos(Y) = cos(C) and cos(Z) = cos(B)

<h3>How to determine the measures of segments AC and AB</h3>

In (a), segments XY and XZ corresponds to the segments AC and AB

So, the product of the lengths of XY and XZ and the scale factor will result in the lengths of AC and AB,

i.e.

AC = 2 * XY and AB = 2 * XZ

Read more about dilation at:

brainly.com/question/26332230

5 0
2 years ago
Other questions:
  • A rectangle is 12 inches long and 7 inches wide. What is the area of the rectangle and square centimeters?
    5·1 answer
  • Whats 15= -15 - 8u equals to?
    6·1 answer
  • The changing climate will probably bring more rain to California, but we don't know whether the additional rain will come during
    6·1 answer
  • HELP PLS i need this right now
    8·1 answer
  • Working together, Joy and Steve collected 39 pounds of aluminum cans for recycling. If Joy collected j pounds, which of the foll
    6·1 answer
  • Does the equation 2x-4y=0 represent a direct variation
    13·2 answers
  • If you use a graph and a table to solve an equation that shows two expressions equal to one another, how can you use algebra to
    5·1 answer
  • Please help me with 2,3,4,5,6 show me the steps and the answers please
    7·1 answer
  • Need help in math ASAP
    13·2 answers
  • A trencher can be rented for $27 an hour or $145 a day. If you need the trencher for 6 hours, how much money
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!