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
Finger [1]
3 years ago
13

What are the zeros of f(x) = x(x-7)?

Mathematics
1 answer:
den301095 [7]3 years ago
3 0

Answer:

c. 0 and 7

Step-by-step explanation:

You might be interested in
Who should fill out the W-2 form?
Flauer [41]
I think B is the answer. I am not sure
8 0
3 years ago
Read 2 more answers
Solve the rational function of (check image) and check for extraneous solutions
Oxana [17]

Answer:

Option A is correct.

i.e. x = 1, x = 0 is an extraneous solution.

Step-by-step explanation:

Given the expression

\frac{5}{x}=\frac{4x+1}{x^2}

Solving the rational function

\frac{5}{x}=\frac{4x+1}{x^2}

Apply fraction across multiply: if \frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c

5x^2=x\left(4x+1\right)

Subtract x(4x+1) from both sides

5x^2-x\left(4x+1\right)=x\left(4x+1\right)-x\left(4x+1\right)

Simplify

5x^2-x\left(4x+1\right)=0

5x² - 4x² - x = 0

x² - x = 0

Factor x² - x = x(x-1)

so

x(x-1) = 0

Using the zero factor principle

if ab=0, then a=0 or b=0 (or both a=0 and b=0)

x=0\quad \mathrm{or}\quad \:x-1=0

Thus, the solution to the equation is:

x=0,\:x=1

But, it is clear that if we substitute x = 0, the equation becomes undefined because we can not have the denominator to be 0.

In other words, the equation is undefined for x = 0

Thus, x = 0 is an extraneous solutions.

Therefore, option A is correct.

i.e. x = 1, x = 0 is an extraneous solution.

5 0
3 years ago
Which statements about the graph of f(x) =√x are true?
marshall27 [118]

Answer:

Step-by-step explanation:

So let's think about what values you can take square root of...

anything but negative values!

So the first one is not correct because you can also take square root of 0,

squareroot of 0 is 0.

So because of this, C and D are both correct, E is correct because root  x is an increasing function. B is incorrect because (0,0) is an intercept.

5 0
3 years ago
-8 is a term true or false
kupik [55]

True, -8 is a term. Have a great day.

8 0
3 years ago
Textbook: Please write as an expression involving functions of Θ alone.
Setler [38]

Step-by-step explanation:

tan(Θ + 30°)

Use angle sum formula:

tan(A + B) = (tan A + tan B) / (1 − tan A tan B)

So we can write this as:

(tan Θ + tan 30°) / (1 − tan Θ tan 30°)

tan 30° = 1/√3, so:

(tan Θ + 1/√3) / (1 − 1/√3 tan Θ)

Multiply top and bottom by √3:

(√3 tan Θ + 1) / (√3 − tan Θ)

6 0
3 years ago
Other questions:
  • Who will get the rolls done first ?
    15·2 answers
  • What are rational exponents, and how are they related to integer exponents?
    11·1 answer
  • Attendance at a science fair for the last year was 8 years was 86,72,98,106,112,65,and 96.The science coordinator says that the
    8·1 answer
  • Find the circumference and area of a circle with a radius 9 cm.
    8·2 answers
  • Which of the following integrals will find the volume of the solid that is formed when the region bounded by the graphs of y=e^x
    6·1 answer
  • The water level in a plastic pool changed by -8 gallons each hour due to small hole in the bottom after 6 hours the pool contain
    5·1 answer
  • #1: What is the x-intercept of the line graphed below? Write your answer as an ordered pair.​
    6·2 answers
  • Ginger the cat weighed 25lbs! The vet put Ginger on a diet and by the end of the month, Ginger weighed 20lbs. What percentage of
    13·2 answers
  • I need this done fast, it's due today!
    10·2 answers
  • Abby earns $9.95 per hour doing landscape work. She worked 8.5 hours last week.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!