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
tiny-mole [99]
3 years ago
15

ABC IS a right angled triangle at B and D is a point on BC. If AD=18cm , BD=9cm and CD = 4 cm, find AC

Mathematics
1 answer:
leva [86]3 years ago
4 0
AB =  \sqrt{ AD^{2} - BD^{2} } =  \sqrt{243} = 9 \sqrt{3} 

AC = \sqrt{ AB^{2} + BC^{2} } =  \sqrt{412} = 2 \sqrt{103}
You might be interested in
Simplify the expression.<br><br>(1.08 x 10^-3) x (9.3 x 10^-3) ÷ 0.1
AlekseyPX
<span>1.2555⋅<span>10^<span>−<span>6  
</span></span></span></span>Explanation:

<span><span><span>(1.08⋅<span>20<span>−3</span></span>)</span><span>(9.3⋅<span>10<span>−3</span></span>)</span>=<span>1.08<span><span>(20)</span>3</span></span>⋅<span>9.3<span><span>(10)</span>3</span></span>=<span><span>1.08⋅9.3</span><span>8⋅<span>106</span></span></span>=1.2555</span><span>⋅<span>10<span>−6</span></span></span></span>

6 0
2 years ago
H(x)=2x;find h(7) please help​
bearhunter [10]
2? bc if x=7 then it equals 2(7) which is 14 sooo i believe either 7 or 2
5 0
3 years ago
Read 2 more answers
The average salary for a construction worker is $29,160 per year. A veterinarian makes on average $84,460. If you consider the e
wel
Hey ! 

I am going to explain what I did to get the answer...

I multiplied $29,160 by 30 = $874,800
Then I multiplied $84,460 by 30 = $2,533,800 

Then I subtracted the results = a difference of $1,659,000

So the answer to your question is, $1,659,000 is the difference. 

I hope I was able to help you out :D <span />
5 0
3 years ago
Read 2 more answers
Please help me answer this question
Alekssandra [29.7K]
10 divided by 200= 20
4 0
3 years ago
Read 2 more answers
Trapezoid JKLM is shown on the coordinate plane below
Anna11 [10]

Answer:

b i think (im not really sure

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Answer the question.
    7·1 answer
  • A coral reef grows 0.13 m every week. How much does it grow in 15 weeks
    6·2 answers
  • There are 26 students in an algebra class. The number of girls in the class is one less than twice the number of boys. How many
    7·1 answer
  • What is 0.024mm to m
    12·1 answer
  • The population of bees in a certain field is modeled by the function, f(0) = 100000 x 0.85", where a denotes the
    6·1 answer
  • What does g equal if <br> -g - 9 = -10g
    10·2 answers
  • Which function has a vertex on the y axis? A. f(x) = (x-2)^2 B. f(x) = x(x+2) C. f(x) = (x-2)(x+2) D. f(x) = (x+1)(x-2)
    9·1 answer
  • Hello please help thanks
    11·1 answer
  • Scott is maling packages. Each small package costs him $2.50 to send. Each large package costs him $4.40. How much will it cost
    12·2 answers
  • What is The answer to this problem -k+16-12k
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!