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
Lemur [1.5K]
3 years ago
8

Someone pls help im so close

Mathematics
1 answer:
Sliva [168]3 years ago
4 0

Answer:  A) 126.6

<u>Step-by-step explanation:</u>

Since we know ∠B = 85° and ∠C = 53°, we can use the Triangle Sum Theorem (angles of a triangle = 180°) to calculate ∠A.

∠A + ∠B + ∠C = 180

∠A + 85 + 53 = 180

∠A + 138 = 180

∠A = 42

Now we have:

                       A = 42          B = 85       C = 53

                       a = 85          b = ???       c = ???

We have all of the information for ∠A and side a so we can use the Law of Sines to find b (AC).

\dfrac{\sin 42}{85}=\dfrac{\sin 85}{b}\\\\\\b(\sin 42)=85(\sin 85)\\\\\\b=\dfrac{85\sin 85}{\sin 42}\\\\\\b=\large\boxed{126.547}

You might be interested in
I need help, and I’m also confused.
amid [387]
There are two triangles, a big triangle and a small triangle that is inside the big triangle. Because the base of the triangles are parallel to each other( indicated by the arrow), and the small triangle is perfectly inside the bigger triangle, the sides of the triangles are proportional.

It is know that the base of the small triangle is 3.5, and the hypotenuse of the small triangle is 7cm. it is also known that the the hypotenuse of the big triangle is (7+8)=15 and the base of the big triangle is unknown.

Since the triangles are proportional,
to find the base of the big triangle

base(big)/hypotenuse(big)=base(small)/hypotenuse(small)

Plug in the numbers


x/15=3.5/7
x/15=1/2
x=15/2
x=7.5

The length of the base of the big triangle is 7.5cm
8 0
3 years ago
What is the median for the set of data 3.5 1 3 4​
yawa3891 [41]

Answer:

3.5

Step-by-step explanation:

Test Scores

1, 1, 2, 3, 3, 4, 4, 5, 5, 5

median(middle #)

(3+4)/2 = 7/2 = 3.5

6 0
3 years ago
Read 2 more answers
2. Reece is playing a carnival game in which he
Maslowich
25% or 2/4 and to win one game 50% or 1/2
6 0
2 years ago
Help plsssssss homewrok do taday <br> -2x - 3y = 6
OlgaM077 [116]

Answer:

x=0/y=-2

y=0/x=-3

....∞

Step-by-step explanation:

6 0
3 years ago
11 ounces is to one cup as<br> ounces is to 10 cups.
Margaret [11]

Answer:

What's the question?

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Why is rates, ratios ,and proportions important when working in the healthcare industry?
    13·1 answer
  • Ashley Sigler gave 2/5 of her bonus check of $255 to a missionary family. How much
    8·1 answer
  • The solution to 2 x 27 will be what kind of number?
    9·2 answers
  • For the functions f(x) = 4x^4+4x^3-8x^2-13x-5 and g(x) = x+1, find (f/g)(x) and (f/g)(2)
    14·1 answer
  • In a certain​ state, 50​% of adults indicated that sausage is their favorite pizza. Suppose a simple random sample of adults in
    15·1 answer
  • What is the product of these two binomials?
    11·1 answer
  • Are the following ratios proportional 3/4 = 27/36? Write the process needed to determine if the two ratios are proportional to e
    12·1 answer
  • The sum of four consecutive integers is -294. Find the integers
    12·1 answer
  • Nick went canoeing on the river. He traveled 1 mile in 17 minutes. At this rate, how far will he travel in an hour and 25 minute
    6·1 answer
  • Out of110110students,6666areabsentabsent. What percentage of the students areabsentabsent?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!