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
Natasha_Volkova [10]
3 years ago
5

Someone help please!

Mathematics
1 answer:
saveliy_v [14]3 years ago
5 0

Answer:

BC ≈ 14.7 m

Step-by-step explanation:

Using the Sine rule in Δ ABC

\frac{AB}{sinC} = \frac{BC}{sinA}

To find ∠ A subtract the 2 given angles from 180°

∠ A = 180° - (90 + 28)° = 180° - 118° = 62°

Then

\frac{7.8}{sin28} = \frac{BC}{sin62} ( cross- multiply )

BC × sin28° = 7.8 × sin62° ( divide both sides by sin28° )

BC = \frac{7.8sin62}{sin28} ≈ 14.7 m ( to 3 significant figures )

You might be interested in
mario tagged a total of 147 squirrels. He tagged 38 tan male squirrels,10 tan female squirrels 82 gray male squirrels and 17 gra
Umnica [9.8K]
The chance that he will catch a grey squirrel is 

82/147

but you are trying to figure out the chance of him NOT getting a grey squirrel so

147/147 - 82 /147 = 65/147 

65/147 is your answer and you can not round that down anymore

7 0
3 years ago
The neighborhood swimming pool is 14 feet long, 11 feet wide, and 3 feet deep. Which formula below should be used to find how mu
My name is Ann [436]

Answer:

  D.  14 feet × 11 feet × 3 feet

Step-by-step explanation:

The volume of a rectangular prism is the product of its dimensions:

  V = LWH

  V = (14 ft)(11 ft)(3 ft) . . . . . matches choice D

4 0
1 year ago
If you toss a coin 4 times, what is the probability of landing heads, heads, tails, heads and then heads?
storchak [24]
50 percent chance for either one
7 0
3 years ago
Read 2 more answers
Could you please show the work for both of them?​
lesantik [10]
7. y=-3/2x+8 (3rd answer choice)

substitute
-4=-3/2(8)+b
-4=-24/2 +b
-4=-12+b
+12 both sides
8=b

so equation would be...

y=-3/2x+8 (3rd answer choice)




8. y=-5x-17 (2nd answer choice)

substitute
-2=-5(-3)+b
-2=15+b
-15 both sides
-17=b

so the equation would be...

y=-5x-17 (2nd answer choice)


check your work by substituting each (x,y) value into the final equations if you want. hope this helps :))
3 0
2 years ago
Find the coordinates of the circumcenter for triangle DEF with coordinates D(1,3) E(8,3) and F(1,-5) show your work
nikklg [1K]

One leg is horizontal, on the line y=3. Another leg is vertical, on the line x=1. The point where these intersect, D(1, 3) is the vertex of a right angle. Any right triangle inscribed in a circle has its hypotenuse as the diameter of the circle.

Since the triangle is a right triangle, the circumcenter is the midpoint of the hypotenuse: ((8, 3) + (1, -5))/2 = (4.5, -1).

6 0
3 years ago
Other questions:
  • What is the scale factor in the dilation if the coordinates of Aare (-7, 6) and the coordinates of Care (-4, 3)?
    11·2 answers
  • a shop sells hats and scarves.The scarves cost 1.5 times as much as the hats.Writ 2 patterns that could represent the costs of 1
    12·1 answer
  • 6+4m-1=21<br><br> I think this is the last question so please be quick and help!
    6·2 answers
  • Describe how the graph of y = −4x2 differs from the graph of y = −x2 . A. The graph of y = −x2 is narrower than the graph of y =
    13·1 answer
  • Negative is less than positive true or false​
    13·2 answers
  • A train travels at a constant speed of 60.4 miles per hour for 101.5 minutes. What distance does the train cover?
    6·1 answer
  • Find the value of x<br> Round to the nearest tenth
    8·2 answers
  • Sabiendo que 16x10=160¿como resolverías, sin hacer la cuenta escrita los siguientes calculos?A_16x20=
    13·1 answer
  • Answer for this to question c
    8·1 answer
  • Please I need help!!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!