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3 years ago

What would the value of 0 represent in her data?

Mathematics

2 answers:

ozzi3 years ago

6 0

Answer:My family hates me

Step-by-step explanation:

Sliva [168]3 years ago

6 0

a) Answer:

Shipping cost of 3.2 package is $4.13.

We can't use the cost assigned to 3

lbs because the package is over 3 lbs but it is not over 4 lbs so we use the

cost of 4lbs. (check the attachment for price)

b)Answer:

Line graph is needed to represent

the Media Mail shipping prices as a function of the weight of the books

shipped.

In line graph, x values represent the

weight in pounds and the y values represent the cost.

c) Answer;

When we graph the Media Mail shipping

prices as a function of the weight of the books shipped, it will be;

f(x) = 2.69 + 0.48(x-1)

d) Answer:

domain

is the x values; range is the y values

We can

define the domain of a function

f(x) as the set of all values for which the function is defined, and the range of the

function refers to the set of all values that f takes.

Given that;

x =

number of books purchased

f(x) =

price of shipping one order of books

fixed

fee = 3 per order

variable

fee: 1.99 per book

thus

the function will be;

f(x) =

3 + 1.99x

Assuming

the x =

f(0) =

3 + 1.99(0)

f(0) =

3 + 0

f(0) = 3

check the attachment. Graph part 1 f

g) The graph is

continuous because the x-values can have any input as a point.

That graph is a continuous, means it is like

unbroken line. Therefore we want to say that f(x) is a continuous function. But

a function is a relationship between numbers.

Part 2;

Area =

8,100 square feet

area of

a square = a²

8,100

square feet = a²

√8,100

square feet = √a²

90 feet

= a

total

length each row of bookshelf is 4/5 of the length of the storage space.

90 feet

* 4/5 = (90*4)/5 = 360/5 = 72 feet.

Area =

(72 ft)²

Area =

5,184 square feet.

Part 3

a) check the attachment

b)check the attachment

Part 4:

let x represent the amount of a transaction

and f(x) represent the amount Isabel is charged for the transaction

then;

f(x) = 1.5(x)

c) The domain and range are both negative infinity to positive infinity.

We can define the domain of a function f(x) as the set of all values for which the function is defined, and the range of the function refers to the set of all values that f takes

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HELP ILL GIVE U BRAINLESS I NEED THIS ANSWER FAST! I’ll make u art tol

lapo4ka [179]

1: 80% The reason why is because if you do 4/5, you get .80, move the decimals to places to the right, and you get 80%

2: 95% Process of Elimination, and Educated Guess.

3: 33 1/3% If you do 50/150, you get 0.33333... Like I said, move the decimal point two places to the right, and you get 33.33...%

I hope this helps, and Happy Holidays! :)

4 0

2 years ago

What is the value of X?

bearhunter [10]

Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

Let's first establish that the shape is a triangle meaning that the following formula is applicable as displayed below:

Angle sum of a triangle = 180°

As well as this, the shape is an equilateral triangle meaning that each angle of the triangle is equivalent in value. Also, the following formula is also applicable as displayed below:

Each angle of an equilateral triangle = the same value

Therefore:

Each angle of an equilateral triangle = angle sum of a triangle ÷ no. of angles in a triangle = 180° ÷ 3 = 60°

Based on this, the following is applicable:

2x - 4 = 60°

2x = 60 + 4

2x = 64

x = 64 / 2

x = 32°

ANSWER:

Therefore, the answer is:

The value of ( x ) is 32°

Please mark as brainliest if you found this helpful! :)
Thank you <3

8 0

3 years ago

What is the value of x? A. 5 B. 8.7 C. 11.5 D. 20 AND MAKE SURE YOU EXPLAIN IT!

AlekseyPX

D. 20 it's a 30-60-90 degree triangle so because the length of the hypotenuse is twice the length of the shortest leg

8 0

3 years ago

Suppose the horses in a large stable have a mean weight of 975lbs, and a standard deviation of 52lbs. What is the probability th

Lubov Fominskaja [6]

Answer:

0.8926 = 89.26% probability that the mean weight of the sample of horses would differ from the population mean by less than 15lbs if 31 horses are sampled at random from the stable

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

$\mu = 975, \sigma = 52, n = 31, s = \frac{52}{\sqrt{31}} = 9.34$

What is the probability that the mean weight of the sample of horses would differ from the population mean by less than 15lbs if 31 horses are sampled at random from the stable?

pvalue of Z when X = 975 + 15 = 990 subtracted by the pvalue of Z when X = 975 - 15 = 960. So

X = 990

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

By the Central Limit Theorem

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

$Z = \frac{990 - 975}{9.34}$

$Z = 1.61$

$Z = 1.61$ has a pvalue of 0.9463

X = 960

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

$Z = \frac{960 - 975}{9.34}$

$Z = -1.61$

$Z = -1.61$ has a pvalue of 0.0537

0.9463 - 0.0537 = 0.8926

0.8926 = 89.26% probability that the mean weight of the sample of horses would differ from the population mean by less than 15lbs if 31 horses are sampled at random from the stable

7 0

3 years ago

Solve by extracting roots. Round your answers to two decimal places.

Colt1911 [192]

2.8a^2=55
a^2=55/2.8
a= square root of 55/2.8

7 0

3 years ago

Read 2 more answers