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
mel-nik [20]
3 years ago
9

In triangle ABC, Aat the top of the triangle, B at 90° and C at the third end, angle C = 21°, the hypotenus = 15m,find BC = y th

e unknown side
Mathematics
1 answer:
dsp733 years ago
7 0

Answer

Step-by-step explanation:

Law of sines: SinB/15 = SinA/BC

B = 90

A = 180-90-21=69°

BC= (15*SinA)/SinB = (15*sin69)/1 ≈ 14m

You might be interested in
Pi is an irrational number. could pi = 22/7? why or why not?
Marina CMI [18]
No, it can't.

Irrational numbers are numbers that cannot be expressed as fractions.

So therefore, Pi cannot equal 22/7.
4 0
3 years ago
Read 2 more answers
* PLEASE HELP *<br> -State what the answer is, then please inform me on how to do it. ~Thank you :)
katovenus [111]
So 2 miles per 1/2 hour
therfor 1 mile in 1/4 hour since 1/4 is 1//2 of 1/2

so
1 mile per 1/4 hour
2 mile per 2/4 hour
3 mile per 3/4 hour

basically 2 times 3/2=3 so
1/2 times 3/2=3/4=answer
7 0
3 years ago
Read 2 more answers
At a sale this week a desk is being sold for $391 . This is a 32% discount from the original price . What was the original price
valina [46]
$391 ÷ 68 = $5.75 x 100 = $575
6 0
3 years ago
Read 2 more answers
Trapezoid RSTU with vertices R(-5, 15), S(0, 10), T(-5, 5) and U(-15, 5): scale factor = 1/5, centered at the origin
Vlada [557]

Answer:

34

Step-by-step explanation:

6 0
3 years ago
Describe the pair of angles shown in the figure.
Gelneren [198K]

Answer:

<h3>Adjacent angles or Supplementary angles I am not sure tho:)</h3>

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Tony writes an equation to represent the distance he walks in meters, d, in relation to the number of minutes he walks, m. d = 1
    7·2 answers
  • A circle is increased to have a circumference that is 4 times larger than the original. Which of the following options best desc
    14·1 answer
  • Factor out the coefficient 1/2d+6
    11·2 answers
  • A store manager ordered 402 baseball caps and 122 ski caps estimate the total number of caps the manager ordered
    6·1 answer
  • Write two different mixed numbers where the LCD (lowest common denominator) is 12
    5·1 answer
  • Probability of pulling a green marble out of a bag of coloured marble is 2:5 if you were to pull coloured marbles out of the bag
    10·1 answer
  • What is the #1 rule of inequalities that<br> makes them different than equations?
    15·1 answer
  • ITS AN EXAM PLEASE HELP
    5·1 answer
  • Lia must work at least 5 hours per week in her family’s restaurant for $8 per hour. She also does yard work for $12 per hour. Li
    11·1 answer
  • Find the slope rise/run
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!