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
olga_2 [115]
2 years ago
14

What’s the value of x

Mathematics
1 answer:
skelet666 [1.2K]2 years ago
5 0

Answer:

Step-by-step explanation:

You are given an angle, the adjacent side to the angle, and need the hypotenuse of the triangle.  Use Cos x  to find the missing side.

Cos α = (adjacent side)/(hypotenuse)

Cos 45 = 10/x

    x(Cos 45) = 10       (multiply both sides by x to get rid of the fraction)

       x = 10/(Cos 45)    (divide both sides by Cos 45 to isolate x

  Cos 45 = (√2)/2   so we have...

        x = 10/[(√2)/2]  

now simplify...

    x = 10*(2/√2)

       x =  20/√2

           x = (20√2)/[(√2)(√2)

               x = (20√2)/2

                      x = 10√2

                or x = 14.1421 if you use a calculator

You might be interested in
In ΔJKL, j = 93 cm, k = 82 cm and l=86 cm. Find the measure of ∠J to the nearest degree.
zhuklara [117]

Answer:

5

Step-by-step explanation:

Answer:

85t

Step-by-step explanation:

1. Volume of a cone: 1. V = (1/3)πr2h 2. Slant height of a cone: 1. s = √(r2 + h2) 3. Lateral surface area of a cone: 1. L = πrs = πr√(r2 + h2) 4. Base surface area of a cone (a circle): 1. B = πr2 5. Total surface area of a cone: 1. A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

hope this helps

8 0
2 years ago
Read 2 more answers
What is the solution to the system of two equations shown?
Nadya [2.5K]

The solution of the given system of equation is x = -3 and y = 4 respectively.      

<h3>What is a system of linear equations?</h3>

A system of linear equations can be defined as a number of equations needed to solve the equations. For n number of variables n number of equations are required.

The given system of equations is as,

y = 4x + 16                   (1)

y = −2x − 2                  (2)

In order to solve them, substitute equation (2) into (1) as follows,

4x + 16 = −2x − 2

=> 4x + 2x = -2 - 16

=> 6x = -18

=> x  = -3

Then, y = -2 × -3 - 2 = 4

Hence, the solution of the given system of equation is x = -3 and y = 4.  

To know more about system of equations click on,

brainly.com/question/24065247

#SPJ1    

6 0
11 months ago
Find the equation of the line passing through the points (5,21) and (-5,-29)
Assoli18 [71]

Answer:

Look below

Step-by-step explanation:

lets have -29 be y2 and -5 be x2

21 - (-)29

5 - (-)5

Subtracting a negative is just adding it so

21 + 29   50
5 + 5       10

50/10

this simplified, is 5/1 or 5

y=5x+b

now we need to find b, so we substitute  y and y

x = 5

y = 21

21=5*5=b

5*5 is 25

now we need to get to 21


25 -4 is 21

b = -4

y=5x-4

3 0
2 years ago
A 160-lb man carries a 5-lb can of paint up a helical staircase that encircles a silo with radius 20 ft. If the silo is 90 ft hi
zheka24 [161]

Weight of man and paint = 160 + 5 = 165 total pounds.

Gravitational force is independent of the path taken so we can ignore the radius of the silo.

Work done = total weight x height

The problem says he climbs to the top so overall height is 90 feet

Work = 165 lbs x 90 ft = 14,850 ft-lbs

5 0
3 years ago
8. The graph of a horizontal line is a function. True False
11111nata11111 [884]

Answer:

It is not due to the fact it has no variable

7 0
3 years ago
Other questions:
  • Please help I have no idea what I’m doing
    5·1 answer
  • A bucket has 42 liters of water in it when it is 3/7 full. How much can it hold?
    14·1 answer
  • Solve the Inequality. Graph the Solution.<br><br> 8+k&lt;-3
    9·2 answers
  • I HAVE NO IDEA - Please show your work and full explanation! <br><br> Thanks !
    5·2 answers
  • Which of the following sampling techniques is the most likely to produce a random sample, representative sample of all students
    7·2 answers
  • Kylie has only quarters and nickels in a jar the total value in the jar is $2 if there are a total of 20 coins how many of each
    5·1 answer
  • If two marbles are selected in succession with replacement, find the probability that both marble is blue.
    7·1 answer
  • a dream club charges $150 for the first month of membership, and $5 less each month after that. what is the total membership for
    12·1 answer
  • 5/7 + 8/14<br><br> 1 2/7<br> 19/14<br> 1 2/14 help, please
    6·2 answers
  • Rylan paid a total of $2,961.00, including principal and interest, over an 11-month period, to pay off his credit card. Choose t
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!