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3 years ago

What are the zeros of the function f(x) = x2 - 5x + 4?

Mathematics

1 answer:

stich3 [128]3 years ago

5 0

To find the zeros set the equation equal to zero:

x^2 - 5x +4 = 0

Factor:

(x-4) (x-1) = 0

Now solve each set of parenthesis so that they equal zero:

(x-4) = 0, x =4

(x-1) = 0, x = 1

The zeros are 1,4

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What is f(0)? 4 5 6 7

Nutka1998 [239]

Answer with a Step-by-step explanation: We are given the table as:

x f(x)

0 6

2 7

4 0

7 5

i.e. corresponding to different values of x we are given the values of f(x)

we have to find the value of f(0)

i.e. we have to find the value of f(x) when x=0

As we can see from the table the value of f(x) at x=0 is 6

Hence, Correct option is:

C) 6

4 0

3 years ago

Find the domain and range

victus00 [196]

Answer:

Domain) all x

Range) 1

Step-by-step explanation:

The domain is the x values and the range is the y values

In this case anything could be x, and y can only be 1

6 0

3 years ago

Select ALL the correct answers.

skelet666 [1.2K]

Answer:

The statements that are true are:

1.575 was the coffee yield , in thousands of kilograms,before the honeybees were introduced.

1.16 represents the growth factor that reveals the rate at which the coffee yield increases.

2 is the number of times the coffee yield was compounded per year.

Step-by-step explanation:

We are given a function that models The coffee yield, in thousands of kilograms, t years after the introduction of the honeybees.

Also, the coffee yield increases according to a model where the exponential change is compounded semiannually .

The function is given by:

$f(t)=1.575(1.16)^{2t}$

Here when t=0, i.e. before the honeybees were introduced we have:

$f(0)=1.575$

Also, the rate of increase i.e. the growth rate is denoted by : 1.16

Also, 2 represents the number of times the coffee yield is compounded per year.

8 0

3 years ago

The heights of a certain type of tree are approximately normally distributed with a mean height y = 5 ft and a standard

Arisa [49]

Answer: Fourth Option:

"A tree with a height of 6.2 ft is 3 standard deviations above the mean"

Step-by-step explanation:

It is said that an X value is found Z standard deviations from the mean mu if:

$\frac{X-\mu}{\sigma} = Z$

In this case we have that:

$\mu=5\ ft$

$\sigma=0.4\ ft$

We have four different values of X and we must calculate the Z-score for each

For $X =5.4\ ft$

$Z=\frac{X-\mu}{\sigma}$

$Z=\frac{5.4-5}{0.4}=1$

This means that: A tree with a height of 5.4 ft is 1 standard deviation above the mean

First Option: False

For $X =4.6\ ft$

$Z=\frac{X-\mu}{\sigma}$

$Z=\frac{4.6-5}{0.4}=-1$

This means that: A tree with a height of 4.6 ft is 1 standard deviation below the mean

Second Option: False

For $X =5.8\ ft$

$Z=\frac{X-\mu}{\sigma}$

$Z=\frac{5.8-5}{0.4}=2$

This means that: A tree with a height of 5.8 ft is 2 standard deviation above the mean

Third Option: False

For $X =6.2\ ft$

$Z=\frac{X-\mu}{\sigma}$

$Z=\frac{6.2-5}{0.4}=3$

This means that: A tree with a height of 6.2 ft is 3 standard deviations above the mean.

Fourth Option: True

3 0

3 years ago

Read 2 more answers

DUE TODAY PLEASE ANSWER!! Write the equation for the graph. Show algebraic support.

Andrews [41]

Positive 2 because the graph shows the red line going over 2

5 0

3 years ago

What are the zeros of the function f(x) = x2 - 5x + 4?​

What are the zeros of the function f(x) = x2 - 5x + 4?