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Alexxandr [17]
2 years ago
3

The Mendoza family is shopping for a new laptop computer. They will make their decision based on size and brand. The family made

a table to show the possible outcomes for the different choices. There are 12 possible outcomes. Which is a possible number of sizes and brands from which the family could choose?
6 sizes and 6 brands, 4 sizes and 3 brands, 2 sizes and 12 brands , 4 sizes and 8 brands,
Mathematics
2 answers:
kenny6666 [7]2 years ago
5 0
4 sizes and 3 brands
earnstyle [38]2 years ago
3 0
4 sizes and 3 brands because when you multiply 4 and 3 you get 12.
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Which statements are true of the function f(x) = 3(2.5)x? Check all that apply. a) the function is exponentioal b)The initial va
AnnyKZ [126]

Answer:

a) The function is exponential

c) The function increases by a factor of 2.5 for each unit increase in x.

d) The domain of the function is all real numbers.

Step-by-step explanation:

Exponential functions are written y = a(b)ˣ.

<u>a) the function is exponential is </u><u>true</u><u>.</u>

"a" represents the initial value, or the y-intercept.

"b" represents the rate of increase or decrease.

"x" and "y" represent points on the function.

Since a = 3, the initial value is 3.

<u>b) The initial value of the function is 2.5 is </u><u>false</u><u>.</u>

Since b = 2.5, the rate of change is 2.5

<u>c)The function increases by a factor of 2.5 for each unit increase in x is </u><u>true</u><u>.</u>

When you graph the function, (see graph below), you can see the information clearly.

The domain means how far the graph will go left to right. The graph will continue left to negative infinity, and will continue to the right to positive infinity. This make the domain all real numbers.

<u>d)The domain of the function is all real numbers is </u><u>true</u><u>.</u>

<u />

The range is how far up or down the graph will reach. Exponential functions have a horizontal asymptote, which is where the graph gets very close to touching a horizontal line, but never will. The asymptote is on the left of the y-axis. The range is all real numbers greater than 0.

<u>e)The range of the function is all real numbers greater than 3 is </u><u>false</u><u>.</u>

"3" is the initial value, but the graph extends behind the y-axis too.

9 0
2 years ago
Suppose you are a television network executive interested in how a new pilot show, Statistics, will be received by the general U
a_sh-v [17]

Answer:

Step-by-step explanation:

Hello!

If X₁, X₂, ..., Xₙ be the n random variables that constitute a sample, then any function of type θ = î (X₁, X₂, ..., Xₙ) that depends solely on the n variables and does not contain any parameters known, it is called the estimator of the parameter.

When the function i (.) It is applied to the set of the n numerical values ​​of the respective random variables, a numerical value is generated, called parameter estimate θ.

This follows the concepts:

1) The function i (.) It is a function of random variables, so it is also a random variable, that is to say, that every estimator is a random variable.

2) From the above, it follows that Î has its probability distribution and therefore mathematical hope, E (î), and variance, V (î).

In this example, the variable of interest is X: response of a U.S. television viewer surveyed over the Statistics show.

The mean response was μ=6.5 and the standard deviation σ=1.5

If many samples of U.S. television viewers with size n=9 were taken and the sample mean of the user's ratings was calculated. The resulting sample mean will be a random variable and its distribution will have the same shape as the population it was originally calculated from.

The correct option is:

1. The shape of the distribution of mean ratings depends on the shape of the ratings of the general U.S. television-viewing population.

Since is impossible to study whole populations, due to economic, materials, and time reasons, especially when the populations are very big. Then since you cannot study the population mean directly, it is best to do it through the sample mean. For this, you need to know its theoretical distribution.

Correct option:

2. To conclude the population mean using a sample mean, you need to know the theoretical distribution of the possible values the sample mean ratings could have.

I hope you have a SUPER day!

8 0
2 years ago
Christina is randomly choosing three movies to take on vacation from nine action movies, seven science fiction movies, and four
zmey [24]

Answer:

The answer is <u>D</u>

Step-by-step explanation:

7 0
2 years ago
Sarah is planning to spend a week at her friend's summer house in Miami Beach. All meals will be provided by her friend's parent
Rus_ich [418]

Answer:

500$

Step-by-step explanation:

5 0
2 years ago
What is the ratio of the area of sector ABC to the area of sector DBE?
shusha [124]

We have to find the" ratio of the area of sector ABC to the area of sector DBE".

Now,

the general formula for the area of sector is

Area of sector= 1/2 r²θ

where r is the radius and θ is the central angle in radian.


180°= π rad

1° = π/180 rad


For sector ABC, area= 1/2 (2r)²(β°)

= 1/2 *4r²*(π/180 β)

= 2r²(π/180 β)

For sector DBE, area= 1/2 (r)²(3β°)

= 1/2 *r²*3(π/180 β)

= 3/2 r²(π/180 β)

Now ratio,

Area of sector ABC/Area of sector DBE =\frac{2r^{2}*\ \frac{\pi}{180} beta}{3/2 r^{2}*\ \frac{\pi}{180}beta}

= 4/3

7 0
2 years ago
Read 2 more answers
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