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
Archy [21]
3 years ago
11

How do you solve this without using a calculator

Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

C)\:\:\frac{\sqrt 2}{ 2 }

Step-by-step explanation:

\sin \bigg(   \frac{3\pi}{4} \bigg) \\  \\  =  \sin \bigg( \pi   -   \frac{\pi}{4} \bigg) \\  \\  =  \sin \bigg(\frac{\pi}{4} \bigg) \\  \\   =  \frac{1}{ \sqrt{2} }\\\\=  \frac{\sqrt 2}{ 2 }

You might be interested in
A student attempted to generate an equivalent expression using the distributive property, as shown below:
ra1l [238]
In the equation 2(x+5) = 2x +5 
You need to use distributive property so your answer would be 2x + 10.
So the mistake that was made is... 

B: 2 was not multiplied by 5 

3 0
3 years ago
Read 2 more answers
In AKLM, m = 1.2 cm, k = 5.1 cm and
Elodia [21]

Answer:

  4.2 cm

Step-by-step explanation:

The law of cosines is applicable.

  l² = k² +m² -2km·cos(L)

  l² = 5.1² +1.2² -2·5.1·1.2·cos(35°) ≈ 17.4236

  l ≈ √17.4236

  l ≈ 4.2 . . . cm

4 0
3 years ago
Ms. Callahan had 250 sheets of paper. She used 6 sheets of paper. She then gave each student 3 sheets of paper.
irina [24]
The answer would be D if it was 250-6-3n. it wouldnt be A or C because 9 isnt anywhere in the problem and it wouldnt be B because she used 6 peices of paper she didnt just give it to her students 
3 0
3 years ago
Kinda confused on this question.
salantis [7]
6x+5= 9x-4
9=3x
3=x
To find RS you need to substitute x back into the equation
9(3)-4
27-4
23

23 is the answer
6 0
3 years ago
A dealer bought an item for $20 sold it for 24 bought it for 25
yuradex [85]

Answer:

$3

Step-by-step explanation:

Started with $20 Sold for $24 Bought it for $25 Then sold it for $28

so, $24 -$20= so she made $4.

then she bought it for $25-$24= so she only made $1

Finally she sold it for $28-$25 so she made a total of $3

6 0
3 years ago
Other questions:
  • (-3x) to the negative first power
    7·1 answer
  • What is 75,000 rounded to the nearest ten thousand. Explain.
    14·2 answers
  • Question 7
    11·1 answer
  • EMERGENCY
    11·2 answers
  • 2x=10y Determine the constant of proportionality. Assume that y represents all of the outputs and x represents the inputs
    13·1 answer
  • Which is more heavy a pound of bricks or a pound of feathers​
    15·1 answer
  • Question 2 of 5
    15·1 answer
  • Working with negative exponents #steps
    7·1 answer
  • I was a little confused on this problem
    15·1 answer
  • On a coordinate plane, 2 triangles are shown. Triangle 1 has points at A (negative 3, 4), B (negative 2, 1), C (negative 4, 1).
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!