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
VashaNatasha [74]
3 years ago
6

A viewfinder has a triangular lens. Some of the measurement of the length are shown below. Which of the following best represent

s the length of a?

Mathematics
1 answer:
S_A_V [24]3 years ago
5 0

Answer:

A

Step-by-step explanation:

First, we need to find the unknown angle of the triangle.

40 + 20 = 60

180 - 60 = 120

So the unknown angle is 120.

Then, we can use the law of sines to create a proportion.

sin(120)/8 = sin(40)/a

Then, we can simplify this.

a is about 5.9, or answer choice A.

You might be interested in
In 2012 there were approximately 8,950 public libraries in the United States. A survey found that 76% of those libraries offered
choli [55]

Answer:

6,440

Step-by-step explanation:

i just did the math for this

5 0
2 years ago
-what is the answer<br>​
faust18 [17]

Answer:

answer

Step-by-step explanation:

4 0
2 years ago
Evaluate a+b/2,if we know a=3 and b =6
Crazy boy [7]
4.5. because ⁼3=9, and 9 divided by 2 is 4.5
5 0
3 years ago
Read 2 more answers
7/8 - 6/7. what is the answer.???
lesantik [10]

Answer:

0.0178 is the answer

6 0
1 year ago
What multiplication sentences are in the same fact family as 54•6 = 9
blsea [12.9K]
6•54 u just have to switch it around
3 0
3 years ago
Other questions:
  • Evaluate the surface integral. s z + x2y ds s is the part of the cylinder y2 + z2 = 4 that lies between the planes x = 0 and x =
    7·1 answer
  • Please help thank you.
    9·1 answer
  • Solving Proportions 19/4 = x/4
    7·1 answer
  • Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and exp
    9·2 answers
  • 3(r-1) -2(r+3) =0 anybody know the answer to that ?
    7·1 answer
  • Can anyone Pleaseee tell me how to do this I’m a little confused?
    9·1 answer
  • PLS HELP NOW +brainlist
    10·2 answers
  • F(x)=x2. What is g(x)?
    5·1 answer
  • Given the function f(x) =-2/3x+2 solve for the x-and y-intercepts . Use the intercepts to graph the function .
    12·1 answer
  • NEEED HELPppppppppppp<br> PLSSSSS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!