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
3241004551 [841]
4 years ago
6

Someone please help me

Mathematics
1 answer:
andreev551 [17]4 years ago
8 0
Sin² Ф + cos² Ф =1, if sin Ф = 11/61, that means cos² Ф =(11/61)² 

(11/61)² + cos² Ф = 1;   cos² Ф = 1 - (11/61)²

cos² Ф = 3600 / 3721 and cos Ф =√(3600/3721) = 60/61, so cos Ф =60/61
You might be interested in
Name three collinear points
Kipish [7]
Points A, B, and E are collinear. They are all on the same line. Don't let the dashed line mislead you, it's just trying to show you that the line goes through the plane. I hope this was helpful.
8 0
3 years ago
Volume
ANTONII [103]
Formula = 

\frac{4}{3}* \pi r^3



Plug 9 for r

Multiply 4/3 * 9^2 = 972

Leave pi as is

972\pi is the answer
3 0
4 years ago
Which relation is not a function?
jok3333 [9.3K]
It would be w beacuse xy and w
6 0
3 years ago
Find f(1/4)<br><br> if f(x)=4x^2-2/3x<br><br>please guys explain it to me I cant understand it ​
Jet001 [13]

Answer:

f(1/4) = 1/12

Step-by-step explanation:

f(x) = 4x^2 - 2/3 x is a function. The name of the function is simply the letter f. It tells you a rule. f(x) is the same as y.

It is the same as having

y = 4x^2 - 2/3 x

For each value of x you are given, you can calculate a corresponding value of y. Instead of calling y, y, we call y "f(x)" which is a way of showing that this relation is a function.

If you were given

y = 4x^2 - 2/3 x and were asked to find the value of y when x = 1/4, what would you do?

You would substitute 1/4 for x in the expression 4x^2 - 2/3 x, and you'd find the value of y.

Being asked to find f(1/4) for function f(x) = 4x^2 - 2/3 x means exactly the same. It means what is the value of the function when x = 1/4? What is the y value corresponding to an x value of 1/4?

Let's calculate it:

f(x) = 4x^2 - 2/3 x

To show we are evaluating the function at an x value of 1/4, we use the notation f(1/4). f(1/4) means find the value of y for function f when x = 1/4. We replace x with 1/4 and do the math.

f(1/4) = 4(1/4)^2 - (2/3)(1/4)

f(1/4) = 4(1/16) - 2/12

f(1/4) = 4/16 - 2/12

f(1/4) = 1/4 - 2/12

f(1/4) = 3/12 - 2/12

f(1/4) = 1/12

6 0
3 years ago
Experts/ace/geniuses helpp
Tems11 [23]
Because the .21 is repeating the fraction is:

1 and 21/99
4 0
3 years ago
Read 2 more answers
Other questions:
  • How to write a multiplication equation with 1/2 as a factor. explain. (picture of 8 halved apples)
    10·1 answer
  • How are addition properties and subtraction rules helpful when solving problems
    8·1 answer
  • I don’t understand this
    6·1 answer
  • 5/6 - 1/3<br><br> Answers should be in the format 5/2 or 2/5. No decimals or mixed numbers.
    8·1 answer
  • Find the number of sides of a regular polygon whose interior angle is 156 degrees
    6·2 answers
  • Find the circumference and area of a circle with radius 6 m. Use the value 3.14.
    7·1 answer
  • What is the simplified value of the expression -2.6+5.8​
    11·1 answer
  • Are the ratios 2:1 and 13:9 equivalent?
    10·2 answers
  • What is the metric measurements of 1 foot​
    11·1 answer
  • Rewrite the equation in Ax+By=C form <br><br> use integers for A,B, and C. <br><br> Y+5=2(x+4)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!