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
KIM [24]
3 years ago
14

What is the relationship between cos(90°) and cos(-90°)?

Mathematics
1 answer:
sdas [7]3 years ago
7 0

Answer:

  they have the same value (0)

Step-by-step explanation:

Cosine is an even function, meaning that cos(x) = cos(-x). When x=90°, we have ...

  cos(90°) = cos(-90°)

Both values happen to be zero.

You might be interested in
I need help figuring out the slope to these points Y=-x-4
mash [69]

Answer:the slope is -1

Step-by-step explanation:

Comparing them equation to

y=mx+c where m is there slope

y=-x-4 the slope is -1

8 0
3 years ago
I have attached the problem in a picture below!​
lesantik [10]

Answer:

A. The solution set is x = 5 or -7

Step-by-step explanation:

\sqrt[4]{ {x}^{2} + 2x }  =  \sqrt[4]{35}  \\ {({x}^{2} + 2x) }^{ \frac{1}{4} }  =  {(35)}^{ \frac{1}{4} }  \\ {x}^{ \frac{1}{2} } + {2x}^{ \frac{1}{4} }   =  {35}^{ \frac{1}{4} }  \\   {x}^{2}  + 2x = 35 \\  {x}^{2}  + 2x  -  35 = 0 \\ (x - 5)(x + 7) = 0 \\ x = 5  \: or \:  - 7

Therefore, the answer is A. as the solution is x = 5 or -7

4 0
1 year ago
Two vertical angles have measures of 3x and x+50. The x= Select one: a. 25 b. 50 c. 32.5 d. 10
KIM [24]

Answer:

a. 25

Step-by-step explanation:

Note that the specifically state that they are vertical angles. This means that the two measurements should equal each other. Set the two expressions equal to each other, and isolate the x. Note the equal sign, what you do to one side, you do to the other:

3x = x + 50

Subtract x from both sides to isolate the x:

3x (-x) = x (-x) + 50

3x - x = 50

2x = 50

Isolate the x, divide 2 from both sides:

(2x)/2 = (50)/2

x = 50/2

x = 25

x = 25, or (a) 25 is your answer.

~

8 0
3 years ago
Read 2 more answers
Find the missing side
mr_godi [17]

Answer:

Step-by-step explanation:

c^2 = a^2 - b^2

13^2 - 5^2 = -12

6 0
3 years ago
Read 2 more answers
Choose the inequality that represents the following graph.
Softa [21]
It should be A x is less than 0
6 0
2 years ago
Read 2 more answers
Other questions:
  • Factor −6 out of −18a−30
    5·2 answers
  • What is the approximate area of the decagon? Recall that a decagon is a polygon with 10 sides.
    7·2 answers
  • The quality of the report Jamie turned in was lower than expected. Here was part of his explanation: "Large portions of the mate
    13·2 answers
  • How do you simplify a fraction?
    11·1 answer
  • Y= 2x<br> x+y=12<br> What is this answer?
    7·1 answer
  • Como hacer una <br><br> Multiplicación de 356x103
    10·1 answer
  • Meline has 4 different coloured crayons and 2 different boxes. How many different ways can Meline put all 4 different crayons in
    10·1 answer
  • Please help if u know
    9·1 answer
  • What is a GEM math program?
    8·1 answer
  • Find the inverse function in slope-intercept form (mx+b):<br> f(x)=-x+12
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!