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
sergiy2304 [10]
3 years ago
9

What is the value of x in the figure below? In this diagram, triangle ABD- triangle CAD .

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
6 0

Answer:

D

Step-by-step explanation:

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

\frac{AD}{CD} = \frac{BD}{AD} , substitute values

\frac{x}{13} = \frac{3}{x} ( cross- multiply )

x² = 39 ( take the square root of both sides )

x = \sqrt{39} → D

Kitty [74]3 years ago
6 0

Answer:

D.  :)

~APEX

I took the quiz fellow APEXer <3

You might be interested in
Write a linear equation that contains the ordered pair shown in the table below:
Amiraneli [1.4K]

Answer:

y=2x-4

Step-by-step explanation:

Let the equation of line is y=mx+b, where m is the slope of the line.

It passes through (-5,-14),(-2,-8)\ and\ (1,-2).

(<em>Slope of the line</em> joining (x_1,y_1)\ and\ (x_2,y_2)=\frac{y_2-y_1}{x_2-x_1})

Hence slope of the given line

m=\frac{-8(-14)}{-2-(-5)}=\frac{-8+14}{-2+5}=\frac{6}{3}=2

Equation of line is: y=2x+b

The line passes through (1,-2)

-2=2\times 1+b\\b=-2-2\\b=-4

Check if (-5,-14) is on the line y=2x-4

L.H.S.=-14\\R.H.S.=2\times (-5)-4=-10-4=-14\\L.H.S.=R.H.S.

Hence line passes through (5,-14).

Check if (-2,-8) is on the line y=2x-4

L.H.S.=-8\\R.H.S.=2\times (-2)-4=-4-4=-8\\L.H.S.=R.H.S.

Hence line passes through (-2,-8).

4 0
2 years ago
Each side of the smaller square in the figure below is n inches long, and each side of the larger square is p inches longer than
lana66690 [7]

Answer:

2np + p²

Step-by-step explanation:

The general formula for the area of a square is A = s², where s = the length of one side of the square.  In the case of the smaller square the area would be: n x n = n².  Since the side of the larger square is 'p' inches longer, the length of one side is 'n + p'.  To find the area of the larger square, we have to take the length x length or (n +p)².

Using FOIL (forward, outside, inside, last):

(n + p)(n+p) = n² + 2np + p²

Since the area of the first triangle is n², we can subtract this amount from the area of the larger square to find out how many square inches greater the larger square area is.

n² + 2np + p² - n² = 2np + p²


8 0
3 years ago
Guyys!! Im helping my lil sister here but I completely forgot it?
iren [92.7K]

Answer:B:72


Step-by-step explanation:

Because you are doing multiplication and division in this problem

5 0
2 years ago
Yall please help me i need to turn this in asap​
Monica [59]

Answer:

A)9

Step-by-step explanation:

so if we see the figure the angle are vertical opposite

and so are equal ,

3x+8=35

3x=35-8

3x=27

x=27/3

x=9

hope it helps

8 0
2 years ago
PLS ANSWER NOW WILL EARN BRAINLIEST IF RIGHT
velikii [3]

3.79+2.57+5.8=12.16

12.16 x 0.0625=0.76


hope this helped!

8 0
2 years ago
Other questions:
  • Solve for x 3/2(x-6)=-3
    11·1 answer
  • The sum of the digits of a three-digit number is 6. The hundreds digit is twice the units digit, and the tens digit equals to th
    14·1 answer
  • 80 is 32% of what number
    8·2 answers
  • I NEED HELP! (Tap on picture!)
    12·2 answers
  • Please help ASAP I have only one more try 20pts and brainliest
    15·2 answers
  • Write the quadratic equation whose roots are 2 and -4 and whose leading coefficient is 2
    5·1 answer
  • A floor tile is 20 inches wide. If the perimeter of the tile is 72 inches, what is the length of the tile?
    12·1 answer
  • A particle travels along the x-axis such that its position at time t is given by the function x(t)= 2t^2+t. What is the average
    8·1 answer
  • What is the cost of the bill if a drink costs $3, a meal costs $20, an appetizer costs $5.50 and a slice of cake cost $3. 75?​
    14·1 answer
  • 8. Find the measures of the three angles of a triangle if the sum of the measure of the first angle and three times
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!