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saveliy_v [14]
2 years ago
7

Number two please! Simplify. Also please explain.

Mathematics
1 answer:
marin [14]2 years ago
3 0

Answer:

<u>2x−15</u>

7x+10

Step-by-step explanation:

3x squared cancels out then you are left with

<u>6x-45</u>

21x+30

then you simplify and get  <u>2x-15</u>

                                            7x+10

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WILL MARK THE BRAINIEST!!! HELP NEEDED
Citrus2011 [14]

Functions can be represented on graphs

The value of f(k + 3) is 0

Given that:

\mathbf{f(-5) = k}

From the graph, we have:

\mathbf{f(-5) = 2}

So, by comparison:

\mathbf{k = 2}

Substitute 2 for k in f(k + 3)

\mathbf{f(k + 3) = f(2 +3)}

\mathbf{f(k + 3) = f(5)}

From the graph, f(5) = 0

So, we have:

\mathbf{f(k + 3) = 0}

Hence, the value of f(k + 3) is 0

Read more about functions and graphs at:

brainly.com/question/1289308

4 0
3 years ago
Your teacher gives you a number cube with numbers 1-6 on its faces. You are asked to state a theoretical probability model for r
butalik [34]

The missing part of the question is show in bold format.

Your teacher gives you a number cube with numbers 1-6 on its faces. You are asked to state a theoretical probability model for rolling it

once. Your probability model shows a probable outcome of 1/6 for each of the numbers on the cube, 1 chance for all any of the 6 numbers.

You roll it 500 times and get the following data:

Outcome 1 2 3 4 5 6

Frequency 77 92 75 90 76 90

Exercises 1–2

1. If the equality model was correct, about how many of each outcome

would you expect to see if the cube is rolled 500 times

2. Based on the data from the 500 rolls, how often were odd numbers observed? How often were even numbers observed?

Answer:

Step-by-step explanation:

1.

If the equally likely model was correct,  about how many of each outcome

would you expect to see if the cube is rolled 500 times.

The probability of rolling any of the numbers from 1 to 6 is  p(1/6)

The number of each of the outcomes expected to be seen in 500 rolls of the number cube is np

= 500 * \frac{1}{6}  \\ \\ = \frac{500}{6} \\ \\  = 83.333 \\ \\ \approx 83

2.  From the given data in the roll;

The odd numbers 1, 3 and 5, were obtained at  77, 75 and 76 times respectively.

Thus, the total number of times odd number were rolled = 77 + 75 + 76 = 228

Probability of an odd number turning up = \frac{ number \ of  \ required  \ outcome}{ total \  number  \ of  \ possible \ outcome}

= \frac{228}{500}

= 0.456

= 45.6%

The even numbers, 2, 4 and 6, were obtained 92, 90 and 90 times respectively.

The total number of times even number were rolled = 92 + 90 + 90 = 272

Probability of an even number turning up  = \frac{ number \ of  \ required  \ outcome}{ total \  number  \ of  \ possible \ outcome}

= \frac{272}{500}

= 0.544

= 54.4%

4 0
3 years ago
Suppose the population of a town is 15,200 and is growing 2% each year. Write an equation to model the population growth. Predic
larisa [96]
For this case, what you need to know is that to model this problem, you must use equations of the potential type:
 y = A * (b) ^ t
 Where:
 A: initial population.
 b: growth rate.
 t: time.
 Substituting values we have:
 y = 15200 * (1.02) ^ t
 After 10 years we have:
 y = 15200 * (1.02) ^ 10
 y = 18529
 Answer:
 An equation to model of the population growth is:
 y = 15,200 ∙ 1.02 ^ x
 the population after 10 years is:
 about 18,529
5 0
3 years ago
HELP PLEASE FAST!!!!
Nataly [62]

Answer:

Domain = (-5,1,3)

Range = ( -4,-2,0,2,4)

This is not a function

Step-by-step explanation:

Domain = (-5,1,3)

Range = ( -4,-2,0,2,4)

Since one x value gives two points for y

this is not a function

3 0
3 years ago
What is the spread of the data in the dot plot?
Igoryamba
I believe it would be A 0to 5
5 0
4 years ago
Read 2 more answers
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