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
Paul [167]
3 years ago
11

In a 30-60-90 triangle, how many sides do you need to know in order to determine the remaining sides

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
6 0
You only need to know one side, you can use , tan, sin, or cos of the angles to find the other 2 sides.
You might be interested in
Or an angle θ with the point (−20, −21) on its terminating side, what is the value of cosine?
kherson [118]
Cos(θ) = -20/√((-20)^2 +(-21)^2)
.. = -20/-√841 . . . . . . . . . . . . . . . . . θ is a 4th-quadrant angle, so cos(θ) > 0
.. = 20/29

The value of the cosine is 20/29.
3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP
dsp73

Answer:

Cubed root of 9

Step-by-step explanation:

3^(2/3)

=³√3²

= ³√9

4 0
2 years ago
Read 2 more answers
90 juniors took different SAT-II tests. 40% more students took the Chemistry test than took the History test, and 50% more stude
erastovalidia [21]

Answer:


Step-by-step explanation:

4.5x=90

x=20 history

28 chemistry

42 math

They add to 90.  


History test=x

Chemistry test=1.4x

Math test=(1.5)(1.4)=2.1x

They add to 90

4 0
2 years ago
Use a number line to show the sum of 6 + (–7).
mylen [45]
So there is a rule
(+)(+)=+
(-)(+)= -
(+)(-)= -
So now if you subtract 6 with 7 you will end up having -1 as you’re answer. Hope this helps
4 0
3 years ago
Plz help<br>which line segment is a reflection of AB in the x-axis
k0ka [10]

I think it would be (F,E)

5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the proportion<br><br> X/4= 2/5
    11·2 answers
  • !!!!!!!!!help pleaseeeeeee
    9·1 answer
  • Is -115.5 rational or irrational
    14·1 answer
  • Suppose y varies directly with x, and y=25 when x=140. What is the value of x when y=36?
    12·2 answers
  • A used car dealer sells SUVs and cars. Of all the vehicles, 70% are cars. Of all the vehicles, 20% are red cars. What is the pro
    14·2 answers
  • The first triangle is dilated to form the second triangle.
    10·1 answer
  • Find the value of x in the triangle shown below.
    11·1 answer
  • Can someone help please?
    11·1 answer
  • Determine the domain and range for the relation in interval notation.
    13·1 answer
  • TConsider △RST and △RYX.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!