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
Lyrx [107]
3 years ago
8

I have X, I just need Y.

Mathematics
1 answer:
GarryVolchara [31]3 years ago
6 0

I'm getting x = 9.3223 which rounds to 9.32. Nice work.

Once you know the value of x, you can use the law of sines to find the value of y

sin(A)/a = sin(B)/b

sin(y)/7 = sin(70)/x

sin(y)/7 = sin(70)/9.3223

sin(y) = 7*(sin(70)/9.3223)

sin(y) = 0.70560358983312

y = arcsin(0.70560358983312)

y = 44.8783278056846

<h3>y = 44.88 approximately</h3>

------------------------------

If you must use the law of cosines, then here's how you could do it

c^2 = a^2 + b^2 - 2*a*b*cos(C)

7^2 = x^2 + 9^2 - 2*x*9*cos(y)

7^2 = (9.3223)^2 + 9^2 - 2*9.3223*9*cos(y)

49 = 86.90527729+81-167.8014cos(y)

49 = 167.90527729-167.8014cos(y)

-167.8014cos(y) = 49-167.90527729

-167.8014cos(y) = -118.90527729

cos(y) = -118.90527729/(-167.8014)

cos(y) = 0.708607182598

y = arccos(0.708607182598)

y = 44.8782954209662 ... this is slightly different from before due to rounding error

<h3>y = 44.88 approximately</h3>
You might be interested in
Helpppppp!!’nnnnnnn.
Irina-Kira [14]
The answer is 29.25
7 0
3 years ago
Read 2 more answers
The market value of Bryan's home is $389,000. The assessed value is $312,000. The annual property tax rate is $18.60 per $1,000
Scilla [17]

Answer:

$5803.20

Step-by-step explanation:

6 0
3 years ago
63 student has to be 4 student in each group who won’t be in a group
alina1380 [7]

Answer:

15×4=60 and 3 people will be left without a group of 4

8 0
3 years ago
Read 2 more answers
If you flip a fair coin 4 times, what is the probability that you will get exactly 2 tails?
andreyandreev [35.5K]

Answer:

50/50

Step-by-step explanation:

2 is half of 4. 4/2 is 50/50

3 0
2 years ago
Read 2 more answers
If 20 were added to each of the vlaues in a data set that originally had a standard deviation of 8, the standard deviation of th
Nitella [24]

Answer:

False (I assume it's a true/false question)

Step-by-step explanation:

Standard deviation measures how spread out the data is.  If you add 8 to all the data values, the distribution of data moves to the right (on a graph) 8 units. The shifted data are no more and no less spread out than before.  The standard deviation does not change.

3 0
3 years ago
Other questions:
  • Plz help i dont understand anything
    6·1 answer
  • What number does the calculator display represent?<br><br> MULTI CHOICE
    11·1 answer
  • Find the distance between -7/8 and 3/8 on a number line
    14·1 answer
  • Please help. here is a screenshot of the question.
    15·1 answer
  • PLS HELP 15 POINTS!<br><br> Find part “b”.
    5·1 answer
  • What is the answer to -3(x-3)​
    15·1 answer
  • Can someone pleaseeee tell me what these areee
    11·1 answer
  • I need help solving this
    12·1 answer
  • What are the X intercept and the Y intercept of this function f(x) equals 4X +12
    10·1 answer
  • PLeAsE HeLp Me<br> (Both images are supposed to be together)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!