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
netineya [11]
3 years ago
14

Which is the equivilent to sin-1(cos(pi/2))

Mathematics
2 answers:
GarryVolchara [31]3 years ago
7 0

Answer:

Expression sin-1(cos(pi/2)) is equivalent to 0.

Step-by-step explanation:

If we write a term in the the form of y = cos(π/2)

Then the value of y will be = cos (180/2) = cos(90) = 0

Now we know the value of y is = 0

And if we will find the sin value of y then

sin y = sin (0) = 0

⇒ Then y = sin^{-1}(0) = 0

Therefore we can say that the expression sin-1(cos(pi/2)) is equivalent to 0.

Kay [80]3 years ago
7 0

Answer:

0 is the answer.

Step-by-step explanation:

Given expression is :

sin⁻¹(cos(π/2))

We have to find the value of above function.

Firstly we find cos(π/2).

Since, we know that π/2 = 90°.

Hence, cos(90°) = 0

Putting the value of cos(90°) in given expression, we get

sin⁻¹(cos(π/2)) = sin⁻¹(0) = 0

Hence, sin⁻¹(cos(π/2)) = 0

You might be interested in
Write a relate substraction fact 6+8=14
ad-work [718]
21-7=14 is a relate subtraction problem
7 0
3 years ago
Read 2 more answers
Ella has 0.5 lbs of sugar. How much water should she add to make the following concentrations? Tell Ella how much syrup she will
Vadim26 [7]

Answer:

1) 2 lbs

2) 0.17 lbs

3) 9.5 lbs

Step-by-step explanation:

Amount of sugar Ella has = 0.5 lbs

Let the amount of water she adds to make the solution = x lbs

So total amount of the mixture would be = (x + 0.5) lbs

Case 1: 20% syrup

20% syrup means the sugar percentage in the mixture should be 20% of the entire mixture. So, 0.5 should be 20% of (x + 0.5). In equation form this can be written as:

0.5 = 20% of (x + 0.5)

0.5 = 0.2(x + 0.5)

Dividing both sides by 0.2, we get:

2.5 = x + 0.5

x = 2 lbs

This means, 2 lbs of water should be added to make 20% syrup solution. So, total syrup she would have will be 2.5 lbs.

Case 2: 75% syrup

75% syrup means the sugar percentage in the mixture should be 75% of the entire mixture. So, 0.5 should be 75% of (x + 0.5). In equation form this can be written as:

0.5 = 75% of (x + 0.5)

0.5 = 0.75(x + 0.5)

Dividing both sides by 0.75, we get:

0.67 = x + 0.5

x = 0.17 lbs

This means, 0.17 lbs of water should be added to make 75% syrup solution. So, total syrup she would have will be 0.67 lbs.

Case 3: 5% syrup

5% syrup means the sugar percentage in the mixture should be 5% of the entire mixture. So, 0.5 should be 5% of (x + 0.5). In equation form this can be written as:

0.5 = 5% of (x + 0.5)

0.5 = 0.05(x + 0.5)

Dividing both sides by 0.05, we get:

10 = x + 0.5

x = 9.5 lbs

This means, 9.5 lbs of water should be added to make 5% syrup solution. So, total syrup she would have will be 10 lbs.

3 0
3 years ago
Please help me!! I really don't know how to do this!!
Nimfa-mama [501]
R*F = 5LF, R*M = 9LM, L*F + L*M = 18, R*F + R*M = 122.
<span>RF=50, </span><span>LF=10</span><span>, RM=72</span><span>, LM=8. Fill in the graph with this info and assume there aren't people that are transgender</span>
3 0
3 years ago
HELP NOW PLEASE!
Leokris [45]

Answer:

-3/1 is the correct answer

5 0
3 years ago
Read 2 more answers
Which of the following strategies is appropriate for factoring polynomials with 3 terms?
Andrei [34K]
That would be elimination. you could do it with substitution but i like using elimination more than substitution when theres more than 2 variables
4 0
3 years ago
Other questions:
  • I NEED THIS ASAP, PLEASE HELP!!!
    15·1 answer
  • Miriam bought a digital camera that cost $140. The sales tax in her state was 7%.
    13·2 answers
  • Mark wants to use a grid to model the percent equivalent of the fraction 2/3. How many grid squares should be shade? What percen
    10·2 answers
  • A motorcycle can travel 60 miles per gallon. Approximately how many gallons of fuel will the motorcycle need to travel 40 km?
    7·1 answer
  • Jeff stated that subtraction and negative are the same thing. Do you agree?
    9·2 answers
  • The question is in the pic please be specific
    10·1 answer
  • HELP ASAP!!!!!!!! PLSSSSSSS HURRY!!!
    13·2 answers
  • Find the new amount given the original amount and the percent of change. $5; 40% increase The new amount is $
    6·2 answers
  • Three out of five attempts, Kyan ski's a 180° perfectly. What percent would describe his success?
    8·1 answer
  • What is the surface area of this triangular pyramid?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!