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
7nadin3 [17]
3 years ago
5

What does the variable x in the example represent?

Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer:

X represents the unknown value that you are solving for in an equation or expression

Step-by-step explanation:

S_A_V [24]3 years ago
4 0

Answer: it represents what you trying to find

Step-by-step explanation:

You might be interested in
Each leg of a 45 45 90 triangle has a length of 6 what is the length of its hypotenuse
Reika [66]
Let x = the length of the triangle's hypotenuse
using proportions, this is what the equation looks like:

cross multiply to get:

divide both sides by 45 to get 
x=12
7 0
3 years ago
PLEASE HELPPPPPP<br>what is a semicirles permitier if the diameter is 4​
trapecia [35]

The straight edge of the semicircle is 4 units, as this is this the diameter.

The circumference of the full circle is

C = pi*d = pi*4 = 4pi

which is the distance around the full circle (aka circle's perimeter)

So half of this is 4pi/2 = 2pi

Add this onto the straight edge length to get 4+2pi as the exact distance around the entire semicircle. This includes both straight and curved portions.

If you use the approximation pi = 3.14, then 4+2*pi = 4+2*3.14 = 10.28 is the approximate answer. To get a more accurate answer, use more decimal digits in pi.

---------------------------------------------------------

In summary,

exact answer in terms of pi is  4+2pi units

approximate answer is roughly 10.28 units (using pi = 3.14)

6 0
3 years ago
(1+cos2x)/(1-cos2x) = cot^2x
sesenic [268]

We will turn the left side into the right side.

\dfrac{1 + \cos 2x}{1 - \cos2x} = \cot^2 x

Use the identity:

\cos 2x = \cos^2 x - \sin^2 x

\dfrac{1 + \cos^2 x - \sin^2 x}{1 - ( \cos^2 x - \sin^2 x)} = \cot^2 x

\dfrac{1 - \sin^2 x + \cos^2 x }{1 - \cos^2 x + \sin^2 x} = \cot^2 x

Now use the identity

\sin^2 x + \cos^2 x = 1 solved for sin^2 x and for cos^2 x.

\dfrac{\cos^2 x + \cos^2 x }{\sin^2 x + \sin^2 x} = \cot^2 x

\dfrac{2\cos^2 x}{2\sin^2 x} = \cot^2 x

\dfrac{\cos^2 x}{\sin^2 x} = \cot^2 x

\cot^2 x = \cot^2 x


8 0
3 years ago
Explain how comparing 645 and 738 is different from comparing 645 and 649
slavikrds [6]
I think it is because they are both different differences
7 0
2 years ago
I WILL GIVE BRAINIEST PLS HELP
Art [367]
Alternate angles - happy to help!
3 0
1 year ago
Other questions:
  • Please respond quickly
    12·2 answers
  • Plz help me this question if you would like to gain more points from this question then press my name and go to my lateset quest
    15·1 answer
  • A train travels 200 miles in 4 hours at a constant rate. What is the constant rate of change for the train in miles per hour? A.
    10·2 answers
  • Which linear equation best represents a trend line for the data in the scatter plot?
    6·2 answers
  • A pole that is 2.8 mm tall casts a shadow that is 1.37 m long. At the same time, a nearby building casts a shadow that is 36.25
    7·2 answers
  • A³+b³+c³-3abc is = ____​
    11·1 answer
  • HELLLLLPPPP ASAP!!!!
    6·2 answers
  • Find the perimeter of the shaded region
    11·1 answer
  • One plus a number y is no more than - 13.
    6·1 answer
  • In a sale the price of a bike is reduced by 40% the sale price of the bike is £192 how much did the bike cost before the sale?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!