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
saul85 [17]
3 years ago
11

Your friend claims that it is possible to draw a right triangle where the cosine of either angle (theta) is exactly the same val

ue. Is she correct?
A. Yes
B. No​
Mathematics
1 answer:
avanturin [10]3 years ago
5 0

Answer:

B. No

Cos \ \theta\neq Cos (90-\theta)\textdegree

Step-by-step explanation:

-A right angle triangle has two complimentary acute angles and one right angle.

-\theta is usually one of the acute angles and is equivalent to 90º minus it's complimentary acute angle.

-Complimentary angles add up to 90º.

#For complimentary angles:

Sin \ \theta=Cos \ (90-\theta)\textdegree\\\\Cos \ \theta=Sin(90-\theta)\textdegree\\\\\therefore Cos \ \theta\neq Cos (90-\theta)\textdegree

The two acute angles cannot have the same Cosine value.

Hence, she's not correct.

You might be interested in
During the sale, Britney pays $16 for a set of bunk beds. What was the original price?
ludmilkaskok [199]

Answer:

it depends on the sale the store is having

6 0
2 years ago
Lana makes $8 an hour plus $12 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week.
Ierofanga [76]

Answer:

A:  W = 8x

B:  12y + 320

C:  44

Step-by-step explanation:

A:  Lana can make $8 an hour.

W = 8x

B:  She makes $12 per hour for every hour of overtime.  This means that she already worked 40 hours with regular pay.  She has already made $320.

40 × $8 = $320

S = 12y + 320

C:  Plug in the amount Lana earned into the second equation.  The second equation will account for pay from both regular and overtime hours.

S = 12y + 320

368 = 12y + 320

368 - 320 = (12y + 320) - 320

48 = 12y

48/12 = (12y)/12

4 = y

y = 4

Lana worked 4 hours of overtime and 40 hours of regular hours.  In total, she worked 44 hours.

4 + 40 = 44

4 0
3 years ago
Read 2 more answers
On a hot, sunny day, a random selection of people in a small town were given a photo of a skating rink in a big city and asked t
tresset_1 [31]
It can't be timing or cost since it is only a few people , i chose bias because a few people is actually 7 - 8 people 

8 0
3 years ago
100p for an answer please
Rainbow [258]
So from solving the problem, we know that the answer must equal -28.

When you solve all of the given options, we find that the only one that does equal -28 would be A.) (-6)(4) + (-6)(2/3).

When I doubt, solve it out. I hope I could help!
7 0
3 years ago
Which equation is equivalent to
Alexeev081 [22]
It y=4z-3/6 BOOMM done for ya
7 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that the terminal point determined by t is the point 12 13 , 5 13 on the unit circle. Find the terminal point determined
    5·1 answer
  • Sophie wrote odd numbers on her paper. what is a number sophie did not write?
    14·2 answers
  • There are 40 tables in a library, with 30% of them seating 4 people. The tables remaining only seat 2 people. How many seats are
    9·1 answer
  • A gas station operates two pumps, each of which can pump up to 10,000 gallons of gas in a month. the total of gas pumped at the
    5·1 answer
  • How do i solve this? i don't understand parenthesis!
    14·1 answer
  • An average of 50 customers travel between Departments A and B each day. Unfortunately, Department C is located between Departmen
    12·1 answer
  • How can you put (6.4+0.92, 15.74-2.64) on a graph
    11·1 answer
  • Start with 50.Add 1 ten.then subtract 2tens.draw to show your work.what is the new number?
    9·2 answers
  • Help with this question please
    12·2 answers
  • The sum of five consecutive integers is 55. find the integers. Giving brainlinest if right answer
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!