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
Nat2105 [25]
3 years ago
5

Which of the following expressions has a value of 2/5 in the picture below?

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0

Step-by-step explanation:

<u>Step 1:  List out all of the formulas for the trigonometric functions </u>

<em>sin(x) </em>= opposite/hypotenuse

<em>cos(x) </em>= adjacent/hypotenuse

<em>tan(x) </em>= opposite/adjacent

<u>Step 2:  Find the following expression that has a value of 2/5 </u>

sin(B) = opposite/hypotenuse = ?/5 is FALSE

cos(B) = adjacent/hypotenuse = 2/5 is TRUE

tan(B) = opposite/adjacent = ?/2 is FALSE

Answer:  The correction expression that has a value of 2/5 is option B

You might be interested in
A board game is played as follows: a number cube numbered 1 to 6 is rolled. If the number 1 comes up, you get nothing. If the nu
Evgesh-ka [11]
I think it is fair becasue you have the chance to win more than to lose point if get 1 or 6 you dont get nothing so that not a lose 
4 0
3 years ago
Please can someone help me I don’t understand
wel

Answer:Count all of the windows that look like rectangles and put your answer below and explain the method you used multiplication, addition.

8 0
3 years ago
Last year, 1.25 million people visited an attraction park.
GuDViN [60]
30,000 people and that is my answer
3 0
3 years ago
Read 2 more answers
HELP!!! Which of the following is not a perfect square trinomial? A. 169 – 26y + y2 B. 81 + 18y + y2 C. 64 + 8y + y2 D. 25 + 10y
natita [175]
Let's review the options:
A. 169-26y+y^2 can be factorised into (13-y)(13-y)
B. 81+18y+y^2 can be factorised into (9+y)(9+y)
C. 64+8y+y^2 cannot be factorised into double brackets
D. 25+10y+y^2 can be factorised into (5+y)(5+y)

Therefore your answer is the odd one out, C.
3 0
3 years ago
Let f(x) = xe^-x+ ce^-x, where c is a positive constant. For what positive value of c does f have an absolute
Illusion [34]

Answer:

c=6

Step-by-step explanation:

The absolute maximum of a continuous function f(x) is where f'(x)=0. Therefore, we must differentiate the function and then set x=-5 and f'(x)=0 to determine the value of c:

f(x)=xe^{-x}+ce^{-x}

f'(x)=-xe^{-x}+e^{-x}-ce^{-x}

0=-(-5)e^{-(-5)}+e^{-(-5)}-ce^{-(-5)}

0=5e^{5}+e^{5}-ce^{5}

0=e^5(5+1-c)

0=6-c

c=6

Therefore, when c=6, the absolute maximum of the function is x=-5.

I've attached a graph to help you visually see this.

7 0
3 years ago
Other questions:
  • Nicole did an aerobics and a yoga class for a total of 1 hour and 10 minutes. The yoga class was 30 minutes longer than the aero
    8·1 answer
  • HELP QUICKLY PLEASE HURRY!!!!!
    11·2 answers
  • Neneh is a florist. Neneh can arrange 20 bouquets per day. She is considering hiring her husband Mustapha to work for her. Toget
    13·1 answer
  • WILL GIVE BEST RATING!!!!
    10·2 answers
  • Selena is flying her kite. How long is the kite string?
    9·1 answer
  • 1/3x^2-5=7 what is x
    10·1 answer
  • Solve. -3(4x-2)-2x-8=x-17
    13·2 answers
  • HELP. I NEED TO KNOW HOW TO ANSWER THIS QUESTION QUICKLY SO I CAN DO IT IN MY EXAMS. PLEASE NO SPAM AND GIVE AN EXPLANATION WITH
    7·1 answer
  • Is x less than or equal to 5​
    9·2 answers
  • Help stranger's ( ◜‿◝ )​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!