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
lukranit [14]
3 years ago
15

15. Simplify sin(90° - O) cos 0 - sin(180° +0) sin e.​

Mathematics
1 answer:
dalvyx [7]3 years ago
4 0

Answer:  cos²(θ) + sin(θ)sin(e)

<u>Step-by-step explanation:</u>

sin (90° - θ)cos(Ф) - sin(180° + θ) sin(e)

Note the following identities:

sin (90° - θ) = cos(x)

sin (180° + θ) = -sin(x)

Substitute those identities into the expression:

   cos(x)cos(x)  -  -sin(x)sin(e)

=  cos²(x) + sin(x)sin(e)

You might be interested in
Find the missing factor.<br> 7s^2 + + 13s + 6 = (7s + 6)<br> )
Anton [14]

Answer:

71s

Step-by-step explanation:

The question we have at hand is 7s² + ___ + 13s + 6² = (7s + 6)². We can expand the perfect equation " (7s + 6)² " in order to find our solution. A perfect square consists of 3 terms, and hence the term in the blanks must add to 13s to form another term.

Applying the perfect square formula : ( a + b )² = a² + 2ab + b², let's expand the expression,

(7s + 6)² = ( 7s )² + 2( 7s )( 6 ) + ( 6 )² =  7s² + 84s + 6²

84s - 13s = 71s, which fills in the blank provided.

5 0
3 years ago
Help please I just need this
Makovka662 [10]
It’s 10077 because it’s hey
3 0
3 years ago
Solve: z-5=75<br><br> A:z=71<br> B:z=80<br> C:z=70<br> D:z=79
poizon [28]

B: z=80___________________________________

5 0
3 years ago
Read 2 more answers
What % more than 80 is more than 104
crimeas [40]
130 i think let me know if this is right
5 0
3 years ago
$4 is what percent of $50? Round to the nearest tenth if necessary?
Assoli18 [71]

Answer

8 %( When we round off to the neaerest tenths we get 10%)

Step-by-step explanation

4/50*100

=4*2

=8%

6 0
3 years ago
Other questions:
  • the figure shows secants GH and GK intersecting to form an angle.Find m&lt;1.if necessary ,round to the tenth place.
    7·2 answers
  • Find the distance between the points: (-3, -4) and (5, 5)
    9·1 answer
  • The first five terms in a pattern are shown below.
    10·2 answers
  • A box of M&amp;M's holds 421 candies. There are 14 packs in the box. About how many candies are in each pack
    14·1 answer
  • What is 199•20+144 <br><br><br> Thank you for those who answer
    13·2 answers
  • The value of 3 x 10, when x = 2, can be
    8·1 answer
  • An educator wants to see how the number of absences for a student in her class affects the student’s final grade. The data obtai
    7·1 answer
  • Can sin(x)* cos(x) +{sin(x)*cos(x)+cos(x)*sin(x)} be simplified? If so, please simplfy it and show your work.
    5·1 answer
  • Tyler's cell phone plan costs $350 to start, then there is a $50 charge each month. On the same grid as Han's
    11·2 answers
  • Which expression is equivalent to?<br> Please help me quick!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!