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4 years ago

Chapter 8 question 18 please help

Mathematics

1 answer:

MA_775_DIABLO [31]4 years ago

4 0

4744 feet. work below. please mark brainliest.

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Helppppppo points to give

viva [34]

a) The point (2, -7/5) is not a point on the graph?

b) The value of f(x) when x is 1 is -1/3 and the point on the graph is (1, -1/3)

c) The value of x for f(x) = 2 is 22 and the point on the graph is (22, 2)

d) The domain of x is all real values of x ≠ 10

e) The x intercept is -2

f) The y intercept is -1/5

<h3>What is a Function?</h3>

Function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output and not one input for two outputs.

Analysis:

a) To test if the point (2, -7/5) is a point on the graph, we put in x = 2 into the function,

f(2) = 2+2/2-10 = 4/-8 = -1/2 ≠ -7/5. Therefore (2, -7/5) is not a point on the graph.

b) if x = 1, f(1) = 1 +2 / 1-10 = 3/-9 = - 1/3

The point on the graph is (1, -1/3)

c) if f(x) = 2, then 2 = x+2/x-10

2(x-10) = x+2

2x -20 = x+2

2x-x = 2+20

x = 22, the point on the graph is (22, 2)

d) The domain of the function is such that the denominator would not be zero.

so if x - 10 ≠ 0

Then the values of x ≠ 10 are the domain of the function.

e) The x intercept of the graph is the point at which f(x) = 0

0 = x+2/x-10

x+2 = 0

x = -2. The x-intercept is -2.

f) the y-intercept is such that x = 0

0+2/0-10 = 2/-10 = -1/5

Learn more about Function: brainly.com/question/25638609

#SPJ1

8 0

2 years ago

Multiplying rational expressions? help!

Len [333]

The "CORRECT" answer is 80x^2

I hope this helps.

Have a "AWESOME" day! :)

6 0

3 years ago

Read 2 more answers

A government sample survey plans to measure the LDL (bad) cholesterol level of an SRS of men aged 20 to 34.

svet-max [94.6K]

Answer:

The sampling distribution of x is N(118, 2.5).

Step-by-step explanation:

We have that:

The mean of the population is $\mu = 118$

The standard deviation of the population is $\sigma = 25$ .

(a) Choose an SRS of 100 men from this population. What is the sampling distribution of x? (Use the units of mg/dL.)

The mean of the sampling distribution is the same as the mean of the population.

The standard deviation of the sampling distribution is the standard deviation of the population divided by the square root of the sample size. So

$s = \frac{25}{\sqrt{100}} = 2.5$

This means that the sampling distribution of x is N(118, 2.5).

7 0

4 years ago

Simplify using the multiplication rule.

goldenfox [79]

A. the first one is the answer

Step-by-step explanation:

3 0

3 years ago

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Brainlist. Neeed this ASAP. please its on Simplify Expression and i put the picture below

Kamila [148]

Answer:

Step-by-step explanation:

the perimeter is the sum of all sides so we have

$P=a^{2} -ab+a-2a+a^2+ab\\\\P=(a^2-2a^2+a^2)+(-ab+2b)+a\\\\P=(0a^2)+(ab)+a\\\\P=ab+a$

8 0

3 years ago

Read 2 more answers