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
pychu [463]
3 years ago
9

What is sin B? Enter your answer, as a simplified fraction

Mathematics
2 answers:
Svetlanka [38]3 years ago
4 0
◆ APPLICATIONS OF TRIGONOMETRY ◆

using \: pythagoras \: theoram \:  -  \\  \\  {(ab)}^{2}  =  {(ac)}^{2}  +  {(bc)}^{2}  \\  \\  {(20)}^{2}  =  {(ac)}^{2}  +  {(16)}^{2}  \\  \\  {(ac) }^{2}  =  {(20)}^{2}  -  {(16)}^{2}  \\  \\  {(ac)}^{2}  = 400 - 256 \\  \\  {(ac)}^{2}  = 144 \\  \\ ac = 12 \\  \\  \\ sin \: b \:  =  \frac{ac}{ab}  =  \frac{12}{20}  \\  \\ after \: simplifying \:  -  \\  \\ sin \: b \:  =  \frac{3}{5}  \:  \:  \:  \:  \: ans.
RideAnS [48]3 years ago
4 0
   (sin)b= 12/20=3/5
sin B= 3/5
You might be interested in
What are the two ratios that are equivalent to 2:9
weeeeeb [17]

Answer:

bc

Step-by-step explanation:

2:9 is equivalent to

18: 81 because is 2*9 : 9*9

12:54 because is 2*6 : 9* 6

8 0
3 years ago
Given the matrices: 1 2 A= 1 -1 2 1 1 B= 3 4 Calculate AB: C11 C12 [2.1] х 1 2 3 4 C21 C22 C11 = C12 = -2 C22 - C215 DONE​
eduard

Answer:

\:c_{11}=-2,\:\:\:c_{12}=-2

\:c_{21}=5,\:\:\:c_{22}=8

Step-by-step explanation:

Given the matrices

A=\begin{pmatrix}1&-1\\ 2&1\end{pmatrix}

B=\begin{pmatrix}1&2\\ \:3&4\end{pmatrix}

Calculating AB:

\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}

Multiply the rows of the first matrix by the columns of the second matrix

                                   =\begin{pmatrix}1\cdot \:1+\left(-1\right)\cdot \:3&1\cdot \:2+\left(-1\right)\cdot \:4\\ 2\cdot \:1+1\cdot \:3&2\cdot \:2+1\cdot \:4\end{pmatrix}

                                   =\begin{pmatrix}-2&-2\\ 5&8\end{pmatrix}

Hence,

\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}=\begin{pmatrix}-2&-2\\ \:5&8\end{pmatrix}

Therefore,

\:c_{11}=-2,\:\:\:c_{12}=-2

\:c_{21}=5,\:\:\:c_{22}=8

5 0
3 years ago
Read 2 more answers
I have 54 oranges. I give 28 away and saved 5 for my family. How many oranges do I have?
ratelena [41]

Answer:

Either <u><em>26 or 21</em></u>  depending on if you count the saved oranges or not.

Step-by-step explanation:

54 - 28 = 26

54 - 28 - 5 = 21

6 0
4 years ago
Read 2 more answers
P-3 1/5=7 1/3 I need help​
alekssr [168]

We have:

p-3\frac{1}{5} =7\frac{1}{3}  => p=7\frac{1}{3}+3\frac{1}{5}= 10\frac{8}{15}

ok done. Thank to me :>

7 0
3 years ago
PLEASE HELP!!! NEED HELP ASAP !!! WILL MARK BRAINLIEST !!!
Aleks04 [339]

Answer:

36 π square feet

Step-by-step explanation:

so the formula for area of a circle is  πr^2

so the radius is 6, which we can just plug in

π(6)^2

36π

so option 3

5 0
3 years ago
Other questions:
  • 10 points please answer urgent
    12·2 answers
  • Graph the system of inequalities. Then use your graph to identify the point that represents a solution to the system. x &lt; 2 a
    9·1 answer
  • Write words to match the expression 3+ (4 times 12)
    10·1 answer
  • Help my sister step by step show work so she can understand because I forgot how to do this stuff
    10·1 answer
  • You play video games online.
    12·2 answers
  • Factor the Following:<br><br>1.) 8<br>2.) -12<br>3.) -3y²<br>4.) 6x²+36x<br>5.) 7x -14x²​
    12·1 answer
  • Simplify the expression 3(x + 2)(x2 − x − 8).
    12·1 answer
  • Help please! Giving brainly!
    6·1 answer
  • 8. Carisa is four inches taller than her friend Lily.
    8·1 answer
  • Consider a family that generates 20 loads of laundry in a week. based on the data in the table, what is the total number of peop
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!