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
alexdok [17]
3 years ago
8

Can anyone help me with this?

Mathematics
1 answer:
Viktor [21]3 years ago
5 0
E. 1/2
With trig functions, multiple x values correspond with the same y value.
Using an initial x value (the principle value), we can find other x values for the same y value, this is what we are are being asked to find in this question.
There are slightly different ways to find these x values (also known as solutions) for each of the basic trig functions.
The x values are in degrees for the basic trig functions.
For cosine, the rule is as follows:
360 - principle value;
this will give what I, personally, like to think of as a secondary principle value (this value is not actually recognised as a secondary principle value, I just like to think of it as such). Anyway, all other solutions can the be found by adding or substrating any integer multiple of 360 to/from the PV and 'secondary PV'.

For your question:
cos60 = 1/2
60 is the x value (PV)
so...
360 - 60 = 300 is the 'secondary PV'
Just to be clear, this means that if I were to find the cos300, I would get 1/2.

That is sufficient for explaining the answer to this particular question but if you wanted to find any other solution, you would just have to do either:
60 + or - n(360)
or...
300 + or - n(360),
where n = any integer
You might be interested in
Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
MrMuchimi

Answer:

divide the 13 motorcycles by the total number of vehicles  and then multiply by 100%

43 cars

Step-by-step explanation:

Q3

To find the percent of motorcycles in traffic

divide the number of motorcycles by the total number of vehicles and then multiply by 100%

Q4

Mode means most often.  In a histogram, it is the tallest column.  It is the first column, which looks like 43 cars

3 0
3 years ago
True or False: The null hypothesis should be rejected at a 10% level of significance when testing whether age has any effect on
olga_2 [115]

Answer:

False

Step-by-step explanation:

The null hypothesis is rejected or accepted on the basis of level of significance. When the p-value is greater than level of significance we fail to reject the null hypothesis and null hypothesis is then accepted. It is not necessary that all null hypothesis will be rejected at 10% level of significance. To determine the criteria for accepting or rejecting a null hypothesis we should also consider p-value.

7 0
3 years ago
two times a number plus three times a number equals 13. The sum of two numbers is 7. what are the numbers? write the numbers for
wel

Answer:

4

Step-by-step explanation:

2+ 3 = 5 \\13-5= 8\\8 divided by 2=4 \\x=4

7 0
3 years ago
Identify the reflection of the figure with vertices E(8,4), F(-16,-8), and G(24,-16) across the y-axis.
Dafna1 [17]

Answer:

\boxed{\text{E$'$(-8, 4), F$'$(16,-8), G$'$(-24,-16)}}

Step-by-step explanation:

When you reflect a point (x, y) in the y-axis, the y-coordinate remains the same, but the x-coordinate gets the opposite sign. Thus,

E (8,4) ⟶ E' (-8,4)

F (-16,-8) ⟶ F' (16,-8)

G (24,-16) ⟶ G' (-24,-16)

\text{The reflected figure has coordinates } \boxed{\textbf{E$'$(-8, 4), F$'$(16,-8), G$'$(-24,-16)}}

The figure EFG and its reflection E'F'G' are shown in the diagram below.

6 0
3 years ago
(5n + 5) + (2x + 8) <br><br> Help meee
murzikaleks [220]

Answer:

5n + 2x + 13

Step-by-step explanation:

5n + 5 + 2x + 8 =

5n + 2x + 13

Hope that helps!

4 0
3 years ago
Other questions:
  • Struggling with these, can anyone help me?
    9·1 answer
  • The lock on a safe requires a three-digit code to open it. The three digits must each be a number from 0-9 (10 possible numbers)
    11·1 answer
  • Which set of x- and y-values represents a function
    8·1 answer
  • 5x+3x=5x+15/2 what value 3x make the equation true
    5·2 answers
  • 21 &gt; 3a - 21 + 9<br><br> Can you help solve this inequality please?
    13·1 answer
  • Mr.Marcus is plotting a pack of pencils equally among his 25 students. After splitting the pencils he has 4 left. If there were
    8·1 answer
  • Please help me with this question!!<br> Find angle x and y.
    14·2 answers
  • Mason currently pas $420 per month in rent. the contract on his apartment sates that his rent will increase by 6% next year.
    11·1 answer
  • Dn80 pipe 88millimeters is According to the plan All openings must be 40mm larger than the pipe. You know that
    10·1 answer
  • X^2-10x = −16 solution??
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!