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
6

Cos10+cos80/sin10+sin80=1

Mathematics
1 answer:
eduard3 years ago
7 0
Evaluate <span><span>cos<span>(10)</span></span><span>cos10</span></span> to get <span>0.984807750.98480775</span>.<span><span><span>0.98480775<span>cos<span>(80)</span></span></span><span><span>−<span>sin<span>(10)</span></span></span><span>sin<span>(80)</span></span></span></span><span><span>0.98480775⁢<span>cos80</span></span><span><span>-⁢<span>sin10</span></span>⁢<span>sin80</span></span></span></span>Evaluate <span><span>cos<span>(80)</span></span><span>cos80</span></span> to get <span>0.173648170.17364817</span>.<span><span><span>0.98480775⋅0.17364817</span><span><span>−<span>sin<span>(10)</span></span></span><span>sin<span>(80)</span></span></span></span><span><span>0.98480775⋅0.17364817</span><span><span>-⁢<span>sin10</span></span>⁢<span>sin80</span></span></span></span>Multiply <span>0.984807750.98480775</span> by <span>0.173648170.17364817</span> to get <span>0.171010070.17101007</span>.<span><span>0.17101007<span><span>−<span>sin<span>(10)</span></span></span><span>sin<span>(80)</span></span></span></span><span>0.17101007<span><span>-⁢<span>sin10</span></span>⁢<span>sin80</span></span></span></span>Evaluate <span><span>sin<span>(10)</span></span><span>sin10</span></span> to get <span>0.173648170.17364817</span>.<span><span>0.17101007<span><span><span>−1</span>⋅0.17364817</span><span>sin<span>(80)</span></span></span></span><span>0.17101007<span><span><span>-1</span>⋅0.17364817</span>⁢<span>sin80</span></span></span></span>Multiply <span><span>−1</span><span>-1</span></span> by <span>0.173648170.17364817</span> to get <span><span>−0.17364817</span><span>-0.17364817</span></span>.<span><span>0.17101007<span><span>−0.17364817</span><span>sin<span>(80)</span></span></span></span><span>0.17101007<span><span>-0.17364817</span>⁢<span>sin80</span></span></span></span>Evaluate <span><span>sin<span>(80)</span></span><span>sin80</span></span> to get <span>0.984807750.98480775</span>.<span><span>0.17101007<span><span>−0.17364817</span>⋅0.98480775</span></span><span>0.17101007<span><span>-0.17364817</span>⋅0.98480775</span></span></span>Multiply <span><span>−0.17364817</span><span>-0.17364817</span></span> by <span>0.984807750.98480775</span> to get <span><span>−0.17101007</span><span>-0.17101007</span></span>.<span><span>0.17101007<span>−0.17101007</span></span><span>0.17101007<span>-0.17101007</span></span></span>Subtract <span>0.171010070.17101007</span> from <span>0.171010070.17101007</span> to get <span>0</span>.0
You might be interested in
Which ordered pairs are in the solution set of the system of linear inequalities?
irina [24]
The answer c, I'm 97% sure
4 0
3 years ago
Read 2 more answers
What is the area of a rectangle with a length of 88 inches and width of 56 inches?
Alecsey [184]

Answer:

C. 4928 in2

Step-by-step explanation:

88 X 56 = 4928 in2

4 0
4 years ago
Read 2 more answers
Jack's mother gave him 505050 chocolates to give to his friends at his birthday party. He gave 333 chocolates to each of his fri
matrenka [14]


Answer:

16

This seems to have been miswritten. So I went ahead and just put it as 50, 3 and 2   
Explanation:

Okay, so Jack started with 50 chocolates and ended with 2. 
The simple way to calculate it would be by realizing that Jack only distributed 48 chocolates. We can find how many times 3 fits into 48 by dividing 48÷3=16.

Using algebra, we substitute the value we want to find with x. Here what we want to find is the number of friends that were at Jack's party.

We know that he started with 50 chocolates, then distributed 3× the number of friends present (which is x). 
We write that down as 50−3x 
(It's minus because when chocolates are distributed, Jack is taking away from what he has.)

We know that after this, there were only 2 chocolates left, so it's 
50−3x=2

Then we proceed by moving all the numbers to the right until only x is left:

<span>−3x=2−50</span>
<span>−3x=−48</span>

<span>x=<span><span>−48</span><span>−3</span></span></span>

<span>x=16</span>

Conclusion: The number of people that attended the party was 16.

6 0
3 years ago
Read 2 more answers
Is The order that you perform the similarity transformations important?
Aneli [31]

Answer:

yes i think it is

Step-by-step explanation:

5 0
3 years ago
Nut B fits on Bolt B. Nut A fits on Bolt C, but does not fit on Bolt A. Bolts B and A are exactly the same. Given the scenario,
Colt1911 [192]
Nut A does not fit on Bolt A.

Bolt A is the exact same as Bolt B.

So it follows that Nut A will not fit Bolt B.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is x over 5 equals 8 over 9?
    7·1 answer
  • How does 10 to the 2nd power -8 +4 x 3 =288?
    7·1 answer
  • Graph the solution set to the inequality.​
    9·1 answer
  • A man six foot two inches tall casts a nine foot three inch shadow. How tall is a child that casts a five foot four inch shadow
    13·1 answer
  • The set shows the absolute values of a set of rational numbers in increasing order.
    15·2 answers
  • 4+-10 subtracting integers
    7·2 answers
  • Which of the following is the graph of the function shown above?
    13·1 answer
  • Find the volume of the Cone. Use 3.14 for . Round your answer to the nearest hundredth ( 2 decimals). Show your work in this que
    14·1 answer
  • Guys what is 91u4y27i3uhn b n cnbvvfhhhhhggggggg 0fes <br><br> ok bye
    13·1 answer
  • Please help me with the following problem.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!