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
VMariaS [17]
3 years ago
11

Find the exact value of cos 45º in simplest form with a rational denominator.​

Mathematics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

\frac{\sqrt{2} }{2}

Step-by-step explanation:

Cos is Adjacent over Hypotenuse, (see picture below)

x/xsqrt(2)

1/sqrt(2)

sqrt(2)/2

You might be interested in
The formula c² = a² + b² is the Pythagorean Theorem used to find the sides of a right
Soloha48 [4]

Answer: 5 cm

Step-by-step explanation:

B = \sqrt{13^{2} -12^{2} } = 5

7 0
2 years ago
Read 2 more answers
HELPPPPPPPPPPPP!!!!!
kykrilka [37]
9=3^2

3^(2x)=(3^2)^(3x-4)
3^(2x)=3^(6x-8)
2x=6x-8
0=4x-8
8=4x
2=x
6 0
3 years ago
Read 2 more answers
Please help me having trouble with this one problem
Licemer1 [7]
18 is not a function because a function is when exactly ONE x value is paired with ONE y value. 

19 is not a function because of the same logic for number 18 
7 0
4 years ago
Which of the following sentences correctly keeps a consistent verb tense?
Reika [66]

Answer:  b

He jumped out of the airplane and deploying his parachute.

Step-by-step explanation: The first sentence because the verbs keep a -Ed ending, signifying the last tense through the whole sentence

4 0
3 years ago
Read 2 more answers
In which graph does y vary directly as x?
Softa [21]
The answer would be A the other lines make no sense when you’re placing something on graph the line is always straight
4 0
3 years ago
Other questions:
  • Help me ASAP!!!
    9·1 answer
  • Y-(-2)=1/3(x-5) please help me
    5·1 answer
  • How to simplify? <br> 2a - 4b - 16 + (3a + 7 ) - 8
    11·1 answer
  • The product of c and 2 is greater than or equal to 20
    15·1 answer
  • The formula for beryllium fluoride is BeF2. If the fluorine (F) in a quantity of this weighs 95 grams, what is the total weight
    15·2 answers
  • How much is 320 gal + 4
    11·1 answer
  • A rectangular park is
    11·1 answer
  • A box of dried fruit has 51 calories in 3 servings. how many calories are in 1 serving?
    13·1 answer
  • The figure is a square. Find the length of side x in simplest radical form with a rational denominator.
    15·2 answers
  • Slope = 5, y-intercept = -1
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!