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
IrinaK [193]
3 years ago
15

1/X+4 = 5 it is solving rational equations

Mathematics
1 answer:
finlep [7]3 years ago
7 0
X=1
Subtract four so you get 1/x=1
Multiply by x
1x=1
Divide by 1
You might be interested in
Please Help!!!
Komok [63]

Answer:

A = 63 m^2

Step-by-step explanation:

The area of a parallelogram is bh

A = bh

The base is 9 and the height is 7

A = 9*7

A = 63 m^2

3 0
3 years ago
Read 2 more answers
What is the area of a circle that has a radius of 3 miles?
mojhsa [17]
A=28.27 miles Sq
A= pie r2 = pie r.3 to 2nd power = 28.27 square miles
5 0
3 years ago
Statistical Question
nadezda [96]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Evaluate Dx / ^ 9-8x - x2^
Solnce55 [7]
It depends on what you mean by the delimiting carats "^"...

Since you use parentheses appropriately in the answer choices, I'm going to go out on a limb here and assume something like "^x^" stands for \sqrt x.

In that case, you want to find the antiderivative,

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}

Complete the square in the denominator:

9-8x-x^2=25-(16+8x+x^2)=5^2-(x+4)^2

Now substitute x+4=5\sin y, so that \mathrm dx=5\cos y\,\mathrm dy. Then

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}=\int\frac{5\cos y}{\sqrt{5^2-(5\sin y)^2}}\,\mathrm dy

which simplifies to

\displaystyle\int\frac{5\cos 
y}{5\sqrt{1-\sin^2y}}\,\mathrm dy=\int\frac{\cos y}{\sqrt{\cos^2y}}\,\mathrm dy

Now, recall that \sqrt{x^2}=|x|. But we want the substitution we made to be reversible, so that

x+4=5\sin y\iff y=\sin^{-1}\left(\dfrac{x+4}5\right)

which implies that -\dfrac\pi2\le y\le\dfrac\pi2. (This is the range of the inverse sine function.)

Under these conditions, we have \cos y\ge0, which lets us reduce \sqrt{\cos^2y}=|\cos y|=\cos y. Finally,

\displaystyle\int\frac{\cos y}{\cos y}\,\mathrm dy=\int\mathrm dy=y+C

and back-substituting to get this in terms of x yields

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}=\sin^{-1}\left(\frac{x+4}5\right)+C
4 0
3 years ago
Sylvie finds the solution to the system of equations by graphing. y = x + 1 and y = x – 1 Which graph shows the solution to Sylv
sesenic [268]
Hey user☺☺


The graph will have no solution.

Hope it works
6 0
3 years ago
Read 2 more answers
Other questions:
  • If I dozen people get on a train and five of them get off at the next stop how many of those people are left on train
    10·2 answers
  • Hello There!! I need help in this question...Use the interactive graph to plot each set of points. Which sets represent proporti
    12·2 answers
  • (2.5 x 10^-8) (9 x 10^-10) Express your answer in scientific notation.
    5·2 answers
  • What is the Y intercept of f(x) = (1/4)^x?
    7·1 answer
  • A rectangular bin with an open top and volume of 38.72 cubic feet is to be built. The length of its base must be twice the width
    6·1 answer
  • Using the graph of f(x) and g(x), where g(x) = f(k•x), determine the value of k.
    9·1 answer
  • Assume that all​ grade-point averages are to be standardized on a scale between 0 and 6. How many​ grade-point averages must be
    11·1 answer
  • Simplify<br> x * x^5 / x^2 * x
    8·1 answer
  • I’ll give brainly The measure of ABC = 180°.
    5·1 answer
  • 18÷3(5_4+1) Answer? ​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!