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
bagirrra123 [75]
3 years ago
12

If the measure of angle A is 40* and the length of side b is 15 inches, which can be the length of side a if it is possible to f

orm two triangles
Mathematics
1 answer:
Sedbober [7]3 years ago
8 0
Because ∠A=40°, therefore ∠B + ∠C = 180.

To create two triangles, we could make a = 10 in.

From the Law of Sines,
a/sinA = b/sinB.
 
Therefore
10/sin(40) = 15/sin(B)
sin(B) = (15/10)*sin(40) = 0.9642
∠B = arcsin(0.9642) = 74.6°

Because the sine function is positive in quadrants 1 and 2, we could also have ∠B = 180 - 74.6 = 105.4°.
This means that
a/sin(105.4) = 15/sin(40°)
a = [sin(105.4)/sin(40)]*15 = 22.5 in

Answer:
We could have a = 10 in, or a = 22.5 in
You might be interested in
Need help on 4,5 pleasesss
Tamiku [17]
The answer is 45 you put the 4 and the 5 togther
7 0
3 years ago
Is this right, be fr please​
larisa86 [58]

Answer:

1. yes

2.yes

Step-by-step explanation: you did the math right good

8 0
3 years ago
Read 2 more answers
30 POINTS URGENT! When solving the following system of equations, which variable would be the easiest to solve for?
AnnyKZ [126]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
9x+9y=9. Solve for Y
Alja [10]

Answer:

y = 1 - x

Step-by-step explanation:

9x + 9y = 9 ( divide through by 9 )

x + y = 1 ( subtract x from both sides )

y = 1 - x

5 0
2 years ago
Read 2 more answers
The total length of a beach is 18.2 kilometers. If lifeguards are stationed every 0.07 kilometers, including one at the end of t
WARRIOR [948]

There would be 260 lifegurads

The easy way is to divide 18.2 by 0.07 to get your answer

If my answer is wrong pls let me know i try my best to edit and make it right

4 0
3 years ago
Other questions:
  • Calculate the area of the circle 10 in round your answer to the nearest hundredth
    7·2 answers
  • A function graph that matches y=3x+1
    15·1 answer
  • How do you write 79% as a fraction, mixed number, or whole number in simplest form?
    6·2 answers
  • How can you solve for x in the proportion StartFraction 7 over 8 EndFraction = StartFraction x over 24 EndFraction? Set the sum
    11·2 answers
  • What is a good linear programming question
    7·1 answer
  • Which equation has a graph that is a parabola with a vertex at (-1, -1)?
    6·2 answers
  • What is the volume of the sphere? (Use 3.14 for π.) 301.44 in.3 2,712.96 in.3 904.32 in.3 1,521.12 in.3
    7·2 answers
  • Given:
    14·1 answer
  • PLEASE HELP ME ASAPPPPPP!!!!!!!<br><br><br><br> TYSM!! :D
    15·2 answers
  • M
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!