Help ASAP PLEASE ………..

Use the rational zero theorem to create a list of all possible rational zeros of the function f(x)=14x7-4x2+2

frosja888 [35]

Answer:

Factor this polynomial:

F(x)=x^3-x^2-4x+4

Try to find the rational roots. If p/q is a root (p and q having no factors in common), then p must divide 4 and q must divide 1 (the coefficient of x^3).

The rational roots can thuis be +/1, +/2 and +/4. If you insert these values you find that the roots are at

x = 1, x = 2 and x = -2. This means that

x^3-x^2-4x+4 = A(x - 1)(x - 2)(x + 2)

A = 1, as you can see from equation the coefficient of x^3 on both sides.

Typo:

The rational roots can be

+/-1, +/-2 and +/-4

Step-by-step explanation:

6 0

3 years ago

Expand the expression, then solve for x.

Sloan [31]

Answer:

5(2x+3)=25

10x+15=25

-15 -15

10x = 10

÷10 ÷10

x=1

7 0

4 years ago

Read 2 more answers

What is the area of the figure need help ASAP 6th grade math

Lelu [443]

Answer:

Hi, so if I remember correctly, you find both parts of the figure using the area formula for each shape and then add them together. Then if you have correct math you should have your answer.

Step-by-step explanation:

1. Take 4 times 11 because you use base times height- that should be 44

2. Then take one half times 14 times 8( one half times the base times the height)

3. Add both of the answers of 1 and 2 and that should be the answer

3 0

3 years ago

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

garik1379 [7]

Answer:

The probability that X is less than 32 minutes is 0.736.

Step-by-step explanation:

Given : The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift. If X has an average value of 24 minutes.

To find : What is the probability that X is less than 32 minutes?

Solution :

If X has an average value of 24 minutes.

i.e. $\lambda=24$

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

The exponentially function is $\frac{1}{\lambda}e^{-\frac{x}{\lambda}}$

The function form according to question is

$f(x)=\{\frac{1}{24}e^{-\frac{x}{24}}, x>0\}$

The probability that X is less than 32 minutes is

$P[x$

Therefore, the probability that X is less than 32 minutes is 0.736.

7 0

3 years ago

Solve the system of equations by the substitution method.

marishachu [46]

Answer:

B. There is no solution.

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

y = x + 9x + 5

y = -x + 11x + 29

Step 2: Simplify systems

y = 10x + 5

y = 10x + 29

Step 3: Solve for x

Substitution

Substitute in y: 10x + 5 = 10x + 29
Subtract 10x on both sides: 5 ≠ 29

Here we see that 5 does not equal 29.

∴ The systems has no solutions.

Step 4: Graph systems

Check the solution set (if applicable).

We see that the 2 lines are parallel and will never intersect. Therefore, this proves that our systems has no solution.

5 0

3 years ago