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
trapecia [35]
3 years ago
14

Please help with this question!

Mathematics
1 answer:
lukranit [14]3 years ago
7 0

Answer:

a. x = 5, AB = 14, BC = 8

Step-by-step explanation:

✔️Both triangles are similar, therefore their side lengths are proportional to each other.

Thus:

\frac{2x + 4}{x + 3} = \frac{7}{4}

Cross multiply

4(2x + 4) = 7(x + 3)

8x + 16= 7x + 21

Collect like terms

8x - 7x = -16 + 21

x = 5

✔️AB = 2x + 4

Plug in the value of x

AB = 2(5) + 4

AB = 14

✔️BC = x + 3

Plug in the value of x

BC = 5 + 3

BC = 8

You might be interested in
A consumer report counted 72 low-quality, 112 medium-quality, and 711 high-quality computers based on a random sample. The repor
blsea [12.9K]

Answer:

high quality = 711/895

medium quality = 112/895

low quality = 72/895

Step-by-step explanation:

72 + 112 + 711 = 895

high quality = 711/895

medium quality = 112/895

low quality = 72/895

8 0
2 years ago
Who can help me and answer the 2 questions for me :(
Art [367]
For Question 1:
angle CAB, angle ABC, angle BCA

Question 2: angle BCD
8 0
3 years ago
Can you please help me with this problem!!
Black_prince [1.1K]

Answer:

.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
write an equation of the line containing the specified point and perpendicular to indicated line. (-5,6) 4x-y=3
Radda [10]
<h2>Greetings!</h2>

Answer:

y = \frac{1}{2}x + \frac{29}{4}

Step-by-step explanation:

First, we need to rearrange the equation to make it y = mx + c

4x - y = 3

y + 3 = 4x

y = 4x -3

So the slope of the line is 4.

The slope of a line perpendicular to an equation is:

\frac{-1}{gradient}

So the slope of the perpendicular line is:

\frac{-1}{4} = -0.25

Now to find the equation of a line you can use the following equation:

y - y₁ = m(x - x₁)

Where y₁ is the y-coordinate, x₁ is the x-coordinate and m is the gradient. Plug the values in:

y₁ = 6

x₁ = -5

m = \frac{-1}{4}

y - 6 = \frac{-1}{4}(x - - 5)

To get rid of the fraction we need to multiply the whole equation by 4:

4y - 24 = -1(x - - 5)

The two negatives cancel out:

4y - 24 = -1(x + 5)

Multiply the brackets out:

4y - 24 = -x + 5

Now, to rearrange the formula back into y = mx + c

Move the -24 over to the other side making it a +24:

4y = 2x + 5 + 24

4y = 2x + 29

Divide everything by 4:

y = \frac{2}{4}x + \frac{29}{4}

y = \frac{1}{2}x + \frac{29}{4}


<h2>Hope this helps!</h2>
8 0
3 years ago
I need help plz I do not really understand this if you can help me I’d highly appreciate
mafiozo [28]

Answer:

X= 43

y=120

Step-by-step explanation:

3x + 8 + X = 180

4x = 180 - 8

X = 43

2y +17+X = 180

2y + 17 + 43 = 180

y = 180 - 60

= 120

6 0
3 years ago
Read 2 more answers
Other questions:
  • a television and dvd player cost a total of $1056. the cost of the television is three times the cost of the dvd player. find th
    6·1 answer
  • 36% of a number is 63.Find 124% of the number
    11·1 answer
  • PLEASE HELP ASAP
    6·2 answers
  • A cycle race began at 9:40
    8·2 answers
  • What is the equation of line that is perpendicular to -x+2y=y and passes through (-2,1)
    7·1 answer
  • Help please I need this as soon as posible ​
    12·2 answers
  • Simplify 2log5+5log2+3log3-3log6​
    8·1 answer
  • What's the answer to 7x-x
    13·1 answer
  • Find the equation of the straight line graph y= mx-6
    11·1 answer
  • Does anyone know this, I have no idea, will mark brainlest
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!