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
Tanya [424]
2 years ago
14

Can somebody help me on this please

Mathematics
1 answer:
Llana [10]2 years ago
5 0
It’s D because since c is to the power of -4 you would move it to the numerator so that it can be to the power of a positive number :)
You might be interested in
Express the number .0957 as a percent rounded to the hundredth place. (please include the % symbol.)
Gemiola [76]
The answer would be 9.57%. You would move the decimal 2 places to the right and add the percent.<span />
4 0
3 years ago
Does anyone know how to do this?? Help please!!!!
Doss [256]

Answer:

When we have a rational function like:

r(x) = \frac{x + 1}{x^2 + 3}

The domain will be the set of all real numbers, such that the denominator is different than zero.

So the first step is to find the values of x such that the denominator (x^2 + 3) is equal to zero.

Then we need to solve:

x^2 + 3 = 0

x^2 = -3

x = √(-3)

This is the square root of a negative number, then this is a complex number.

This means that there is no real number such that x^2 + 3 is equal to zero, then if x can only be a real number, we will never have the denominator equal to zero, so the domain will be the set of all real numbers.

D: x ∈ R.

b) we want to find two different numbers x such that:

r(x) = 1/4

Then we need to solve:

\frac{1}{4} = \frac{x + 1}{x^2 + 3}

We can multiply both sides by (x^2 + 3)

\frac{1}{4}*(x^2 + 3) = \frac{x + 1}{x^2 + 3}*(x^2 + 3)

\frac{x^2 + 3}{4} = x + 1

Now we can multiply both sides by 4:

\frac{x^2 + 3}{4}*4 = (x + 1)*4

x^2 + 3 = 4*x + 4

Now we only need to solve the quadratic equation:

x^2 + 3 - 4*x - 4 = 0

x^2 - 4*x - 1 = 0

We can use the Bhaskara's formula to solve this, remember that for an equation like:

a*x^2 + b*x + c = 0

the solutions are:

x = \frac{-b +- \sqrt{b^2 - 4*a*c} }{2*a}

here we have:

a = 1

b = -4

c = -1

Then in this case the solutions are:

x = \frac{-(-4) +- \sqrt{(-4)^2 - 4*1*(-1)} }{2*(1)} = \frac{4 +- 4.47}{2}

x = (4 + 4.47)/2 = 4.235

x = (4 - 4.47)/2 = -0.235

5 0
2 years ago
Antonio finds a pair of skis that cost $350 before tax. Sales tax is 6%. What is the total cost Antonio will have to pay for the
Ksju [112]

Answer:

$371

Step-by-step explanation:


5 0
3 years ago
What is the slope of the line through (-7.-8) and (0.4)?​
Dmitry_Shevchenko [17]

Use the equation (x2-x1)/(y2-y1)

Substitute the value of x and y

7 0
3 years ago
1) Find the missing side. Give your<br> answer in simplest radical form.
gladu [14]

Answer:

x = 4√5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Trigonometry</u>

[Right Triangles Only] Pythagorean Theorem: a² + b² = c²

  • a is a leg
  • b is another leg
  • c is the hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

Leg <em>a</em> = 8

Leg <em>b</em> = 4

Hypotenuse <em>c</em> = <em>x</em>

<em />

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [Pythagorean Theorem]:                                            8² + 4² = x²
  2. Evaluate exponents:                                                                                         64 + 16 = x²
  3. Add:                                                                                                                   80 = x²
  4. [Equality Property] Square root both sides:                                                    √80 = x
  5. Rewrite:                                                                                                             x = √80
  6. Simplify:                                                                                                             x = 4√5
3 0
2 years ago
Other questions:
  • I need help with these answers. Pizzaz worksheet, What Is The Title. Page E-30, topic 2-k: problem solving: Simple Interest.
    6·1 answer
  • What is the solution of the linear system of equations?
    15·2 answers
  • Saira weights 25 pounds more than umbar . If together they weight 205 pounds. What is the weight of saira
    13·1 answer
  • A scalene triangle has a perimeter of 18a-14. One side is 10a+1; another side is 5a-10. What is the third side?
    8·1 answer
  • Look at the picture and thanks
    10·1 answer
  • Harry was given an assignment. He had 42 days to get 336 tasks done at work.
    12·1 answer
  • Find the value of u <br> 58 <br> 29<br> 29√2<br> 29√3
    11·1 answer
  • There are 20 apples and oranges in the store. There are 6 more apples than oranges. Write an equation to find out how many apple
    10·1 answer
  • Help me pls guys. Calculate the slope using the table.
    9·1 answer
  • Two parallel lines are cut by a transversal as shown below.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!