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
Arlecino [84]
3 years ago
6

Find the value of x using trig please .....

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

8.090169944 or rounded 8.1

Step-by-step explanation:

Use SOH CAH TOA

Look at x and where it is and what you have.

First thing is to get an angle to use, 36, then to set up your equation.

___(36)=___

Figure out what you have.

You have the hypotonouse, 10, and need the adjacent,x, so you use the equation that involves H for hypotonouse and A for adjacent.

You set up your equation using COS, as you are using CAH.

Cos(36)=x/10

X is over ten sure to CAH C-cos A-adjacent and H-hypotonouse

Switch it around to make it equal to x

10*Cos(36)=x

You input it into your calculator. [10] [COS] [36] [ENTER] and you get the answer.

Round however is needed.

You might be interested in
What are the solutions of x2 +6x-6 = 10?
nalin [4]

Answer:

x=2,-8

Step-by-step explanation:

6 0
3 years ago
the function h(x) is quadratic and h(3) = h(–10) = 0. which could represent h(x)? h(x) = x2 – 13x – 30 h(x) = x2 – 7x – 30 h(x)
Inga [223]
h(3)=h(-10)=0\\\\therefore\\\\h(x)=a(x-x_1)(x-x_2)\\\\h(x)=a(x-3)(x+10)=a(x^2+7x-30)\\\\Answer:\boxed{h(x)=x^2+7x-30}
7 1
3 years ago
Read 2 more answers
You earn $36 in 8 hours , how much would you earn in 17 hours . Explain
quester [9]
I hope this helps you

5 0
3 years ago
Read 2 more answers
What is the axis of symmetry for f(x) = −3x2 + 12x − 6?
Marta_Voda [28]
The axis of symmetry can be found by finding the average of the zeros, a derivation from the conservation of energy :P, or by finding the point when the velocity is equal to zero.

df/dx=-6x+12 so df/dx, velocity, equals zero when:

-6x+12=0

6x=12

x=2  so the axis of symmetry is the vertical line x=2

....

average of zeros...

3x^2-12x+6=0

x^2-4x+2=0

x^2-4x=-2

x^2-4x+4=2

(x-2)^2=2

x-2=±√2

x=2±√2  so the average of the zeros is obviously 2.

....

conservation of energy

vf-vi=at  When vf=0, this is the maximum value for f(x)...

-vi=at, vi=b and a(acceleration)=2a(from quadratic) and t=x

-b=2ax

x=-b/(2a)  in this case

x=-12/(2(-3))

x=-12/-6

x=2

 
8 0
3 years ago
Read 2 more answers
Help, I need somebody to help me out with this question.
Rama09 [41]
The first one is 4•7 I believe
4 0
3 years ago
Other questions:
  • A tank contain 5 gallons of water joanna uses a hose to slowly add more water to the tank five gallons of water are added to the
    12·1 answer
  • What is the volume of the rectangular prism?<br> 1/3ft
    9·1 answer
  • Give an example from your classroom of three collinear points
    14·2 answers
  • -30 + 10<br> Find the sum
    7·1 answer
  • What is the solution of -8/2y-8=5/y+4-7y+8/y2-16
    8·1 answer
  • If 8 apples cost $5.84, what will be the cost of 18 apples (assuming an equal rate)? use a proportion to solve this problem and
    5·1 answer
  • Help please it’s a unit test
    8·1 answer
  • A bike helmet which usually costs $57 is discounted 20%. About how much is the discount amount?
    11·1 answer
  • The dolphin dives 30 feet below the surface of the ocean. What is the dolphin's new elevation?
    15·1 answer
  • Which table represents a nonlinear function? Help please!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!