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
Nina [5.8K]
3 years ago
13

Find the value of the trig function indicated

Mathematics
1 answer:
Makovka662 [10]3 years ago
7 0

Answer:

A. (2√13)/13

Step-by-step explanation:

Recall, SOHCAHTOA.

Thus,

Cos θ = Adjacent/Hypotenuse

Adjacent = 16

Hypotenuse = 8√13

Therefore,

Cos θ = 16/(8√13)

Rationalize

Cos θ = (16*√13)/(8√13*√13)

Cos θ = (16√13)/(8*13) = (2√13)/13

You might be interested in
How to solve -7-8(6x+5)
koban [17]

Answer: -47 - 48x

Step-by-step explanation: When you first take a look at this problem, it's tempting to want to subtract -7 - 8 to get -15 and then distribute the -15 through the parentheses.

You wouldn't want to subtract however before you distribute because the distributive property is a form of multiplication and remember from your order of operations that multiplication comes before subtraction.

So the first thing you want to do here is distribute and change the minus sign in front of the -8 to plus a negative 8 so that you know you are distributing a -8 through your parentheses.

So we have -7 + -8 times 6x which is -42x + -8 times 5 which is -40.

Now we have -7 + -48x + -40.

Now just combine your like terms. -7 + -40 is -47 and plus a negative 48x can be written as -48x so we have -47 - 48x.

So your answer is just -47 - 48x.

6 0
4 years ago
Pleaseeeeee explain how to do this problem and answer it please.
Elden [556K]

Answer: 3

Step-by-step explanation:

6 0
3 years ago
What is the inverse of y=cos(x-pi/2)​?
alekssr [168]

Answer:

f − 1 ( x ) = arccos  ( x ) +  π/ 2

Step-by-step explanation:

y=cos(x-pi/2)

For inverse, interchange the variables and solve for y

f − 1 ( x ) = arccos  ( x ) +  π/ 2

6 0
3 years ago
Find the surface area of the following triangular pyrarnid using the net.
JulsSmile [24]

Answer:

B 84 is our answer

Step-by-step explanation:

triangle formula for surface area is base x height divided by 2 so 7 x 6 = 42 42 ÷ 2 = 21 All the other triangles are going to be the same so 21 x 4 = 84 so 84 is our surface area

7 0
3 years ago
Identify n in the equation below. Then name the property that is used.
alisha [4.7K]
B. 5, REFLEXIVE PROPERTY OF EQUALITY

In reflexive property of equality, it states that a = a.

In this instance, the is represented by 8*5. Since it has a reflexive property,
the n  in 8*n = 8*5 is automatically equal to 5.
8 0
3 years ago
Other questions:
  • Is 4/6 less than 6/6
    5·2 answers
  • Refer to the equation 2 x − 6 y = 12. (a) Create a table of values for at least 4 points. Show your work. (b) Use the table of v
    5·1 answer
  • 14 and 15 Questions on rates? Thanks :) Brainliest up for grabs.
    5·1 answer
  • Simplify the radical expression square root of 81x^4
    14·1 answer
  • Gcf and the lcm of 1000 and 4000
    7·2 answers
  • Can someone please explain this to me and give the answer??
    12·1 answer
  • A highway has an optional toll lane that drivers may take to reduce the time they spend driving. Drivers pay a small fee to ente
    6·1 answer
  • Which shows the factored form of x2 – 12x – 45?
    15·1 answer
  • The additive inverse of 5/9 is​
    8·2 answers
  • Solve- 5x - 2(2x - 7) = 2(3x - 1) + <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B2%7D" id="TexFormula1" title="\frac{7}{2}
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!