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
serious [3.7K]
3 years ago
15

Find the value of x if sin80 = Cos(90-x)

Mathematics
2 answers:
AlladinOne [14]3 years ago
6 0

Answer: 80

Step-by-step explanation:

Sin x = cos (90-x)

Like sin 30 = cos (90-30) =cos 60

So

90-x=90-80

Then

X=80

Verify your solution by finding the sum of the angles of sin and cos, it will be 90

Nesterboy [21]3 years ago
5 0

Answer:

Step-by-step explanation:

Sin Ф = Cos (90 - Ф)

Comparing with this

Sin 80 = Cos (90 - 80) = Cos 10

So, x = 80

You might be interested in
What's the best definition of the word "ratio?"
ololo11 [35]

Answer:

Compare

Step-by-step explanation:

Or relation I believe so...

7 0
3 years ago
Help with this question
puteri [66]

Answer:

its A!

Step-by-step explanation:

6 0
3 years ago
Can anyone help me solve all of this? Please help
disa [49]
They are all pretty easy all you do is multiply the cost by the amount of things you buy. For example number 4 your variables are cost (c) and songs (s). Your equation is c•s so $0.99 • s. 50 songs would be .99 • 50 which is $49.50
6 0
2 years ago
WHAT IS THE ANSWER??? HELP
antoniya [11.8K]

Answer:

C

Step-by-step explanation:

The graph has a  x - axis of amount of scarves in intervals of 1 and a y - axis of hours in intervals of 20

Using this information we can see that in the ordered pair, 1 represents x and 16 represents y, which means that the scarves ar 1 and the hours are 16 in the ordered pair

C makes the most logical sense because there is nothing about centimeters in the graph and the scarves are not in the y, but rather in the x

Vote Brainliest, Thx:)

6 0
3 years ago
A triangular playground has angles with measures in the ratio 8 : 6 : 4. What is the measure of the smallest angle?
Airida [17]

Answer:

20°

Step-by-step explanation:

One way of doing this is to find the constant of proportionality, k:

8k + 6k + 4k = 90°    Then 18k = 90°, and k turns out to be 90/18, or 5.

Then the angles are 8(5), 6(5) and 4(5).  The smallest of these angles is thus 20°

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the circumference and area of a circle with diameter 12 ft. Express your answer in terms of pie
    11·1 answer
  • -x+y=5; 4x+y=10 .
    5·1 answer
  • Felicia is 6 years older than Felipe and is five years younger than Fran. If Fran is 22 years old, how old is Felipe
    15·1 answer
  • Write the expression for the following the product of five and two ,added to seven. PLS HELP ME
    11·2 answers
  • In a class, 60% of the students are girls. There are 18 girls in the class. How many boys are in the class? How many students ar
    8·2 answers
  • Patel squeezed oranges so that his family could have fresh-squeezed juice for breakfast. He squeezed StartFraction 4 over 17 End
    11·2 answers
  • What is the correct first step for solving this equation -5(4x-7)+8=3x
    13·2 answers
  • A flower bed is 2 meters wide and 5 meters long. What is the area of the flower bed in square feet? Round intermediate calculati
    9·1 answer
  • Passes through (-3, 1) and perpendicular to x=0
    12·1 answer
  • [100 POINTS] Find the values of x, y, and z.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!