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
atroni [7]
3 years ago
10

HELP ME ASAP.. MY TEACHER IS ASKING FOR THE ANSWER ​

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

Answer:

a) 10.7 cm

b) 11.6 cm

c) 29.9 cm²

Step-by-step explanation:

a) sin(α)/a = sin(β)/b

sin(∠BCD)/BD = sin(DBC)/DC

sin(41°)/BD = sin(55°)/13.4

BD = 13.4*sin(41°)/sin(55°) = 10.73 cm ≈ 10.7 cm

b) From ΔBCD , ∠BDC = 180-(41+55) = 84°

∠ABD and ∠BDC are alternate interior angles, so they are congruent, and

∠ABD = ∠BDC  = 84°

AD²= AB² + BD² - 2*AB*BD*cos (∠ABD) =

= 5.6² + 10.73² - 2*5.6*10.73*cos(84°) = 133.93 cm²

AD =√(133.93) ≈11.6 cm

c) Area(ADB) = (1/2)*AB*BD*sin(∠ABD)=(1/2)*5.6*10.73*sin(84°) ≈ 29.9 cm²

You might be interested in
A bag has four green marbles, three red marbles, and three yellow marbles. What is the probability that you pick a red marble, d
Archy [21]
The probability is 1/9
5 0
3 years ago
Read 2 more answers
I need help with this!
AleksAgata [21]

9514 1404 393

Answer:

  64.6

Step-by-step explanation:

One standard deviation is 4.3. Then +2 standard deviations is ...

  (+2)(4.3) = +8.6

This amount added to the mean gives ...

  56 +8.6 = 64.6 . . . . +2σ from the mean

5 0
2 years ago
(3x-2)(3x-2) solve the problem using factoring
Effectus [21]
9x squared - 6x - 6x + 4
9x squared - 12x + 4
5 0
3 years ago
a player gets to throw 4 darts at the target shown. Assuming the player will always hit the target, the probability of hitting a
padilas [110]

Answer:

3.375

Step-by-step explanation:

(3/5)^3 / (2/5)^3 = 3.375

3 0
3 years ago
Read 2 more answers
Two beauticians, Lydia and Jackie, are working on your hair. Lydia can complete the work in 2 hours, while Jackie can complete t
Pavlova-9 [17]

That is not correct. I just took the test and the answer is 2/3

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is 27 over 90 reduced to
    14·1 answer
  • Can someone help with this
    15·1 answer
  • Simplify 1/2√40<br> A) √10<br> B) 2√10<br> C) 4√10
    6·2 answers
  • How do i factor x^3 +64​
    12·1 answer
  • Situation:
    5·1 answer
  • what is inverse ? what is an example sentence and meaning of inverse, contrapositive and biconditional ?
    9·1 answer
  • I really don't know how to do this-
    11·2 answers
  • 15 points each answer!<br> Will mark brainliest! Absurd answers will be reported.
    12·1 answer
  • Please help me ASAP!!!!!
    12·1 answer
  • What is the value of x?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!