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
larisa [96]
3 years ago
8

Two sides and an angle​ (ssa) of a triangle are given. determine whether the given measurements produce one​ triangle, two​ tria

ngles, or no triangle at all. solve each triangle that results. a=12 b=13 a=56
Mathematics
1 answer:
Setler [38]3 years ago
8 0
These are a huge pain.  First set up your initial triangle with A and B as your base angles and C as your vertex angle.  Now drop an altitude and call it h.  You need to solve for h.  Use sin 56 = h/13 to get that h = 10.8.  The rule is that if the side length of a is greater than the height but less than the side length of b, you have 2 triangles.  h<a<b --> 10.8<12<13.  Those are true statements so we have 2 triangles.  Side a is the side that swings, this is the one we "move", forming the second triangle.  First we have to solve the first triangle using the Law of Sines, then we can solve the second.  \frac{sin56}{12} = \frac{sinB}{13} to get that angle B is 64 degrees.  Now find C: 180-56-64=60.  And now for side c: \frac{sin56}{12} = \frac{sin60}{c} and c=12.5.  That's your first triangle.  In the second triangle, side a is the swinging side and that length doesn't change.  Neither does the angle measure.  Angle B has a supplement of 180-64 which is 116.  So the new angle B in the second triangle is 116, but the length of b doesn't change, either.  I'll show you how you know you're right about that in just a sec.  The only angle AND side that both change are C and c.  If our new triangle has angles 56 and 116, then C has to be 8 degrees. Using the Law of Sines again, we can solve for c:\frac{sin8}{c} = \frac{sin56}{12} and c = 2.0.  We can look at this new triangle and determine the side measures are correct because the longest side will always be across from the largest angle, and the shortest side will always be across from the smallest angle.  The new angle B is 116, which is across from the longest side of 13.  These are hard.  Ugh.

You might be interested in
PLEASE HELP ME FOR BRAINLIEST ANSWER An architect designs a rectangular flower garden such that the width is exactly​ two-thirds
Oksanka [162]

Answer:

Length: 84 ft

Width: 56 ft

Step-by-step explanation:

Let's define some variables first.

Call the length l and width w.

We know that w = 2/3l. Therefore, we can express w in terms of l with this expression.

Now, let's set up an equation. The flower garden is rectangular, and 280 feet of fencing are used to enclose the garden. This represents perimeter.

Remember the formula for perimeter of a rectangle: 2l + 2w

Let's substitute 2/3l for w:

2l + 2*2/3l = P

2l + 4/3l = 280

2 4/3l = 280

10/3l = 280

l = 84

Now, we know that the length is equal to 84 feet. We can multiply 84 feet by 2/3 to find the width.

84*2/3 = 56

Length: 84 ft

Width: 56 ft

Let's plug these values into the formula and see if they give us the correct perimeter:

2l + 2w = P

2*84 + 2*56 = P

168 + 112

= 280 feet

These are the correct dimensions!  

Hope this helps! You can reach out to me if you have further questions or concerns! :)

6 0
3 years ago
Which of the following expressions is equivalent to the expression x - (-3) ?
ziro4ka [17]
D.
X+3
I attached a picture

6 0
2 years ago
Answer as a decimal with four decimal places.
frosja888 [35]

Answer: 0.8333

Step-by-step explanation:

3 0
2 years ago
What is the divisor of 2/7
olga2289 [7]

Answer:

the divisor is 7.

4 0
3 years ago
Read 2 more answers
Tony’s Electronics is marking down the price of a TV 23% from the original price of $175. Which expression can be used to find t
Arlecino [84]

Answer:

The sale price is \$134.75

The expression is \$175(0.77)

Step-by-step explanation:

we know that

The sale price is equal to subtract the discount price from the original price

The discount price is equal to multiply the original price by the percent discount in decimal form

Let

x ----> the sale price

y ---> discount price

23\%=23/100=0.23 ----> percent discount in decimal form

y=\$175(0.23)=\$40.25

x=\$175-y

substitute

x=\$175-\$40.25=\$134.75

therefore

the expression is

175-0.23(175)\\175(1-0.23)\\175(0.77)

3 0
3 years ago
Read 2 more answers
Other questions:
  • A line has slope 4 and y-intercept (0, -2). What is the slope-intercept form of the equation of this line?
    12·1 answer
  • M= x+n over p solve for x
    9·2 answers
  • 3. Determine whether f(x) = -5x2- 10x + 6 has a maximum or a minimum
    11·1 answer
  • hey free brainliest and points yall wanna talk also whats 5,000 - 346 + 2,000 divided by 24? plz help
    9·1 answer
  • A physics class has students. Of​ these, students are physics majors and students are female. Of the physics​ majors, are female
    15·1 answer
  • What is the y-intercept of the graph of the equation 5x + (–2y) = 8?
    10·2 answers
  • Sarah is making a pizza the diameter of the pizza is 8 inches what is the circumference of the pizza using 3.14 rounded to the n
    13·2 answers
  • If 3a = 4b , then a : b= ....<br>(a) 3:4<br>(b) 4:3<br>(c) 3:7<br>(d) 4:7​
    12·2 answers
  • 6-2/3(x+5)=4x solve for x
    8·1 answer
  • 8. A can do a piece of work in 16 days, B in 10 days. A and B work at it together for 6 days and then C finishes it in 3 days. I
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!