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
HACTEHA [7]
2 years ago
11

Help please?? 50 points!

Mathematics
2 answers:
Schach [20]2 years ago
7 0
6 \sqrt{3}
is the correct answer

Rudiy272 years ago
6 0
The triangle ABC and the triangle BCD are similar, therefore

\dfrac{3+9}{x}=\dfrac{x}{9}\ \ \ |cross\ multiply\\\\x^2=12\cdot9\\\\x^2=108\to x=\sqrt{108}\\\\x=\sqrt{36\cdot3}\\\\x=\sqrt{36}\cdot\sqrt3\\\\\boxed{x=6\sqrt3}

You might be interested in
If a18-a12=24.Find d.<br>with steps.....​
kolbaska11 [484]

Answer:

let common difference be d.

a 18=a+17 d

a 14=a+13 d

a+17d - (a+13d) =32

a+17d - a - 13d =32

17d - 13d = 32

4d = 32

d=32/4

d=8

common difference=8

Step-by-step explanation:

(Brainliest if im correct?)

5 0
2 years ago
PLEASE READ TO UNDERSTAND THIS QUESTION thanks guys!
Annette [7]
Square b area = 144 ÷ 2

area = 72 in squared
area in feet = 6 ft squared
4 0
3 years ago
Read 2 more answers
Find the value of +c15 when =c4.
Montano1993 [528]
It equals 60 u do 15* 4
6 0
3 years ago
Pls help?!?!?!?!?!??!!
harkovskaia [24]

Answer:

m<A = 120°

m<C = 45°

Step-by-step explanation:

We can use the triangle sum theorem to find the measures of the angles.

m<A + m<B + m<C = 180°

Then substitute in their given values.

12x + 12 + 15 + 3x + 18 = 180°

Now simplify the equation and you get

15x + 45 = 180°

Continue to solve

15x = 135

x = 9°

Now substitute this value of 9 for the angle expressions of <A and <C

(12 x 9) +12 = m<A

m<A = 120°

(3 x 9)+ 18 = m<C

m<C = 45°

Hope this helps. To check your answer you can add up all the answers to see if it equals 180°.

3 0
2 years ago
if my goal is 27,729,350 and i get 150 closer every minute and 15 seconds how long is it going to take me to get to my goal
oksano4ka [1.4K]

Answer: 13,864,675 seconds

Step-by-step explanation:

I minute 15 seconds = 75 seconds

That means it takes 75 seconds to achieve 150 , and it takes x seconds to achieve 27,729,350. Interpreting this in proportion form , we have:

150 ------ 75 seconds

27,729,350 ------- x seconds

Then

150x = 27,729,350 X 75

150x = 2,079,701,250

x =  2,079,701,250 / 150

x = 13,864,675

That means it takes 13,864,675 seconds to achieve the goal , converting this to minutes, we have:

231,077.9 minutes

5 0
2 years ago
Other questions:
  • A radio disc jockey has 7 songs on this upcoming hours playlist: 2 are rock songs, 2 are reggae songs, and 3 are country songs.
    5·1 answer
  • Y=2x-1 4x+3y=27 what is the value of x
    5·1 answer
  • How many combinations of four books can be made from eight different books?
    7·1 answer
  • Can someone please help
    11·1 answer
  • Which equation matches this graph?
    11·1 answer
  • Find the area of this rectangle
    8·1 answer
  • X – 1/4=1/2 what is x?
    5·2 answers
  • What 5/6 and 4 2/7 product.
    10·1 answer
  • What is 9 + 10 because I might be so.
    14·1 answer
  • A square garden has perimeter of 80m, find its area​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!