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
Irina-Kira [14]
3 years ago
14

Given that cos (x) = 1/3, find sin (90 - x)

Mathematics
2 answers:
drek231 [11]3 years ago
3 0
\sin{(A - B)} \equiv \sin{A}\cos{B} - \cos{A}\sin{B} \\\\
\therefore \sin{(90 - x)}\\
 = \sin{(90)}\cos{(x)} - \cos{(90)}\sin{(x)} \\
= (1)\cos{(x)} - (0)\sin{(x)} \\
= \cos{x} - 0 \\
= \cos{x} \\
= \frac{1}{3}

denis23 [38]3 years ago
3 0
90а= \frac{ \pi }{2}  \\ sin(90а-x)=sin (\frac{ \pi }{2}-x)=cos (x) \\ cos(x)= \frac{1}{3}  \\ sin(x)= \frac{1}{3} \approx0.33333 \\ x=19а
You might be interested in
Please help me..I’ll give good points and give BRAINLIEST!
Alinara [238K]

Answer:

It's the 3rd one

Step-by-step explanation:

5 0
2 years ago
Does anyone know what the formula for the area of a circle is?
Sloan [31]

Answer:

search up-area of circle formula and circumference of a circle formula

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
As an estimation we are told 5 miles is 8 km. <br> Convert 34.5 km to miles.
rjkz [21]

Answer:

The answer is 21.5625

Step-by-step explanation:

The reason is because it first says 5 miles=8 km so that helps us right there.We divide 34.5 by 8 which will give us 4.3125.Then you have to multiply that by 5 which will give us 21.5625.

8 0
3 years ago
Jesus bought 3 pairs of jeans for 71.40. how much would he need to pay for 8 pairs of jeans?
Radda [10]
He would need to $189.60 for eight pairs of jeans.
7 0
3 years ago
How do i factor this trinomial 5y^2 — 7y — 6 ​
scZoUnD [109]

Answer:

(5y+3) x (y-2)

Step-by-step explanation:

5y^2-7y-6

5y^2+3y-10y-6

y(5y+3(-2(5y+3)

(5y+3) x (y-2)

5 0
2 years ago
Other questions:
  • Identify the asymtotes of y= 2/x+1 +2
    8·1 answer
  • If x&lt;5 and y&lt;6, then x+y__ 11<br> is it &lt;,&gt;,=?
    7·1 answer
  • 15 yards to 19 yards
    14·1 answer
  • Someone please help me. serious answers only!!!
    12·2 answers
  • Which of the following is evaluated to 18-√-25?<br> 1) 5i<br> 2) 18-5i<br> 3) 18+5i<br> 4) 23
    7·1 answer
  • What is the first day of spring
    11·2 answers
  • In a survey, 10% of people said they live in a city. If 60 people said they live in a city, how many people were surveyed?
    10·1 answer
  • What is 5×5+9+2+2-4+6-2-3
    6·1 answer
  • 22. Isosceles triangle EFG is shown below inscribed in circle 0. If the measure of ZGEF is 34°, determine the measure of EHG. WI
    13·1 answer
  • Round-Trip Cost ($) Departure City Atlanta Salt Lake City Cincinnati 340.1 570.1 New York 321.6 354.6 Chicago 291.6 465.6 Denver
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!