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
zvonat [6]
3 years ago
5

If BD = 4, AD = x-6, and CD = x, what is the length of CD?

Mathematics
1 answer:
emmainna [20.7K]3 years ago
8 0

Answer:

The length of CD is 8 units

Step-by-step explanation:

<u><em>The complete question in the attached figure</em></u>

we know that

According to the Right Triangle Altitude Theorem,

(BD)^2 = (AD)(CD)

substitute the given values

(4)^2 = (x-6)(x)

16=x^2-6x\\x^2-6x-16=0

solve the quadratic equation by graphing

The solution is x=8 or x=-6

see the attached figure N 2

Discard the negative length.

therefore

The length of CD is 8 units

You might be interested in
SOrry again but pleaaaase help
nikdorinn [45]

Answer:

<em><u>4(10+9) - 40 + 36</u></em>

<em><u>9(5+2) - 45 + 18</u></em>

<em><u>3(12+7) - 36 + 21</u></em>

6 0
3 years ago
Algebra expressions for 1/4 <br> the amount of salt
Salsk061 [2.6K]

Answer:

1/4 x

Step-by-step explanation:

I think this because you don't know the amount of salt so that would be labeled x.

6 0
3 years ago
Read 2 more answers
Como sacar (5+9)+3+6(4+5)+6+9(4-3)<br>con procedimiento forfis?
galina1969 [7]
I think it is 40 because add 5+9=14+3=17+6=23+4=27+5=32+6=38+9=47-4=43-3=40
5 0
3 years ago
Read 2 more answers
If a circle has radius 10 cm, find the length of the arc subtended by a central angle of 36°.
snow_lady [41]
Angle =  36 degrees  =  \frac{\pi}{180} \times 36  = \pi / 5

now, radius =  10 cm

so arc =  radius x angle  =  10 x pi/5  =   2pi  = 6.28 cm
3 0
3 years ago
Margo lists the sizes, inches, of set of screws: 9/64, 5/32, 1/16, 1/8. She reasons that because the denominators are in order f
Finger [1]

Answer:

I think she is incorrect she need to change all the fractions to the same denominators

Step-by-step explanation:

We are going to change all the fractions to 64

9/64 stays the same

5/32 multiply 2    then 10/64

1/16 multiply by 4 then 4/64

1/8 multiply by 8  then 8/64

Now we can order then

5/32 > 9/64 > 1/8 > 1/16 This is the right order

She was wrong.

7 0
3 years ago
Other questions:
  • The Great Pyramid of Giza is a square pyramid located by el Giza, Egypt. It is believed that the original height of the pyramid
    6·1 answer
  • Which choice is equivalent to the expression below? √-49<br><br>btw its 7i
    7·1 answer
  • Determine the​ value(s) of h such that the matrix is the augmented matrix of a consistent linear system. [Start 2 By 3 Matrix 1s
    7·1 answer
  • There are 70 historical fiction books in the school library. Historical fiction books make up 1/10 of the library's collection.
    13·1 answer
  • A common characterization of obese individuals is that their body mass index is at least 30 [BMI = weight/(height)2, where heigh
    8·1 answer
  • What is the solution set of the quadratic equation - 2(2x-7)^2 = - 8​<br>​
    6·1 answer
  • Drag each object to show whether cost is proportional to area in the situation represented. NO BITLY BECUSE YOU A SCAM PLS ANSWE
    5·1 answer
  • Laurie is trying to stay within 10 feet of her current diving depth of -30 feet (with regard to sea level) so that the light is
    5·1 answer
  • Mrs. Donelly drew the triangle above on the chalkboard and asked her students to write down possible side lengths for a, b, and
    14·1 answer
  • What appears to be the lower quartile of this data?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!