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
ahrayia [7]
3 years ago
5

In a right triangle that has one acute angle of 18 degrees, cos 18 degrees is congruent to ?

Mathematics
1 answer:
vichka [17]3 years ago
3 0

Answer:

cos(18°)=sin(72°)

Step-by-step explanation:

we know that

In a right triangle

cos(A)=sin(B)

If A and B are complementary angles

so

A+B=90°

In this problem

A=18°

B=90-18=72°

therefore

cos(18°)=sin(72°)

You might be interested in
A spinner for a game has 5 equal sections labeled 1-5. why is the probability of spinning a 1 or a 4?
kifflom [539]
He was a member of the national league league and was a league of champions in a row of a league championship game
6 0
3 years ago
Solve for k.
EastWind [94]
To do this we need to rearrange the equation.
m = -8j - 9k + 9
Subtract (-8j + 9) from both sides
m + 8j - 9 = -9k
Divide both sides by -9
(m + 8j - 9)/-9 = k

The answer is C
6 0
3 years ago
Answer for brainliest no files
Alex787 [66]

Answer:

D

Step-by-step explanation:

because its the only one that get the answer 3 2/3 which is the amount shown on the line.

3 0
3 years ago
The formula for finding simple interest is I  = Prt, where I is the interest, P is the principal, R is the rate of interest, and
bazaltina [42]
You have the formula, all you need to do is input all the variables given to you in the formula.

I=Prt
=> I=3000*0.06*2
=> I=360
5 0
3 years ago
Solve the system of linear equations below.
Mrac [35]

Answer:

I am not sure which one it is due to what you put in. I think it would be A.

x = 0

y = 2/3

Step-by-step explanation:

Step: Solve x + 6y= 4 for x:

x + 6y + −6y = 4 + −6y

x= −6y + 4

Step: Substitute −6y + 4 for x in 2x + 3y = 2:

2x + 3y = 2

2 (−6y + 4) + 3y = 2

−9y + 8 = 2

−9y + 8 + −8 = 2 + −8

−9y = −6

-9y/-9 = -6/-9

y = 2/3

Step: Substitute 2/3  for y in x = −6y + 4:

x = −6y + 4

x = -6 (2/3) + 4

x = 0

Sorry if it is long and confusing. But I hope this helps!

3 0
3 years ago
Other questions:
  • BRO'S HELP ME!! If you tripled the slant height and radius of a cone, what would be the formula to find the modified surface are
    7·1 answer
  • Find the remainder when x^2 + 3x - 11 is divided by x - 2<br> -13<br> 1<br><br> -1<br><br> -11
    6·1 answer
  • I need help please people help me
    11·1 answer
  • The first person to answer this will get brainliest so good luck :D
    7·2 answers
  • What is the slope? ​
    5·2 answers
  • Match the equation with its corresponding solution for x. 6= -1/3x+5
    11·1 answer
  • What is the answer I need this to be right (n)=3.5 that’s all it gave me HELP
    6·1 answer
  • State the equation of the line which has the y-intercept :
    10·1 answer
  • Yesterday the temperature was 6°C. Today it is -5°C. In degrees Celsius, what is the change in temperature?
    7·2 answers
  • Mark's football team has scored about 24 points each game. They played 12 games this season.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!