me ayudan porfavor/can someone help me please D:​

Answer:

20 students

Step-by-step explanation:20 students cos 88 divided by 4 =22 and it said she had 8 left so 20 student in her class

Answer:

4x+8

Step-by-step explanation:

[tex]\sf \longmapsto \: 2(2x + 5) - 3[/tex]

[tex]\sf \longmapsto \: (2)(2x)+(2)(5)+−3[/tex]

[tex]\sf \longmapsto4x+10+−3[/tex]

[tex]\sf \longmapsto4x+10+−3[/tex]

[tex]\sf \longmapsto(4x)+(10+−3)[/tex]

[tex]\sf \longmapsto4x+7[/tex]

Steps:

See attachment.

Description:

The first step is to simplify the equation step by step and to simplify an equation you can first multiplying the factors and use the exponent rules to remove the parentheses. After that you need to combine it a terms. Then you will get your answer.

For more steps and graph see the attachment.

Answer: 1/12 x + 1/3

Hope this helps.

Answer:

d

Step-by-step explanation:

took it on edg

The graph d represents the solution set of the inequalities 2x^2 < y and -x^2 + 5 > y

First, we represent the mathematical statements as an equation or inequalities

Mathematically, the statements in the questions are:

Where x and y represents the two numbers

So, we plot the graphs of 2x^2 < y and -x^2 + 5 > y

The graph d represents the solution set of the inequalities 2x^2 < y and -x^2 + 5 > y

Read more about inequalities at:

https://brainly.com/question/25275758

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Answer:

-2m

Step-by-step explanation:

The function f(x) = | x - 4| is represented by the Absolute Value Function. Then the correct option is C.

The absolute function is also known as the mode function. The value of the absolute function is always positive.

The absolute function is given as

f(x) = | x |

Then the function is given below.

[tex]f(x) = \left\{\begin{matrix}-x+4 & x\geq 4 \\\\x-4 & x < 4 \\\end{matrix}\right.[/tex]

Then the function can be written as

f(x) = | x - 4|

Then the graph of the function is given below.

Then the correct option is C.

More about the absolute function link is given below.

https://brainly.com/question/10664936

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The independent variable is time of year

Answer:

The number of daylight hours a city in North America receives each day is dependent  

Answer:

The linear function becomes:

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

Step-by-step explanation:

We know that the slope-intercept of a linear function is

[tex]y = mx+b[/tex]

where m is the slope and b is the y-intercept

Note: Slope is also termed as the 'rate of change'.

Given that Aron charges an initial service fee of 10$.

Thus, the y-intercept = b = 10

As the rate of change = 15$ per hour

so the slope = m = 15

Therefore, the linear function becomes:

[tex]y = mx+b[/tex]

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

For example, in one hour i.e. x = 1, the cost 'y' will be:

y = 15x + 10

y = 15(1) + 10

y = 25 + 10

y = $25

Therefore, in one hour (x=1), the cost will be: y = $25

Answer:

The number is 8875

Step-by-step explanation:

Let the numbers be ABCD

Now, A has only 8 options because it's number can be from 1 to 9 excluding 5 because it is reserved for the last number D from the question.

Since A and B are to be the same from the question, then B also has 8 options.

C has only 7 options from 1 to 9 (I didn't say from 0 to 9 for a reason you'll soon see) excluding 2 numbers designated for A and B, then for D.

And D has only one option which is 5.

Since exactly two must be even, then the first two numbers have to even because only the first 3 numbers have possiblity of being even and if I pick a number an odd number for the first number, the second must be the same. Therefore, there is no way exactly two can be even except that the first two are even and for this reason C cannot not be 0 like I said earlier on.

If we pick 6 for the first two, it means we have 66C5. Now since adding the numbers gives 28, there is no single digit that can fit C. The case is the same if we pick 4 for the first and second number since 6 is larger than 4. Hence the only option is picking 8 for the two numbers, so we have

88C5

If C is 7, addition of the digits give 28. Therefore our number is

8875

This satisfies all the condition stated in the question.

Answer:

8875

Step-by-step explanation:

So first we can have 4 empty blank spots like this:              

Then we can say how would you get an odd multiple of 5? 5 is divisible only for numbers that end with 5 and 0, so since 0 is even and 5 is odd, we will pick 5 to be the last digit. Now we know that the thousands and hundreds digits are the same. The problem also says that there are exactly 2 even digits. So we will assume that the thousands and hundreds digit are even because if we made the tens digit even then made one of the remaining digits even we would have to add a 3rd even digit because the first two digits are the same. Since the sum is 28, to narrow it down, I'm going to do 28-5=23. So now I know that the thousands, hundreds, and tens digit have to equal 23 when they're added together. I am doing some trial-and-error here and I will start with the highest even number since our sum is so big. 8+8=16. So now I am going to narrow it down even more. 23-16=7. Since 7 is odd we know have our four-digit number.

8875

Answer:

1/4

Step-by-step explanation:

(-7 , 2) ; (9 , 6)

slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]

          [tex]= \frac{6-2}{9-[-7]}\\\\=\frac{6-2}{9+7}\\\\= \frac{4}{16}\\\\= \frac{1}{4}[/tex]

Answer:

17=10x or m=c

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

11/22= 0.5 multiply 16 and 0.5 and you get 8

Answer: i might be wrong and i apologize if i am but i think its 15.125

Step-by-step explanation:

Answer:

432/120 or 18/5 or 3 3/5

Step-by-step explanation:

Once you multiply all the fractions, you get 432/120

Then you simplify to the furthest

Answer:

4r to the power of 2 - 3r +1

Answer:

25 ph

Step-by-step explanation:

Answer:

0.69

Step-by-step explanation:

Here, we want to find the probability that a randomly selected television is connected to the internet given that it is voice-controlled

let P(V) is the probability of selecting a voice controlled television

P(I) is the probability that a selected television is connected to the internet

So the probability we want to calculate according to Baye’s theorem will be;

P(I|V) = P(I n V)/P(V)

P( I n V) = 22%

P(V) = 32%

So the probability is;

22%/32% = 0.6875 which is approximately 0.69

Answer: 0.69

Step-by-step explanation:

Answer:

-(4 x^2 - 5 x + 28)

-4 x^2 + 5 x - 28

-1\/16 (8 x - 5)^2 - 423\/16

Step-by-step explanation:

any of these equations are equal to  3x^2+5x-7(x^2+4)​

The equivalent expression is -4 x² + 5 x - 28.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Given:

3x²+5x-7(x²+4)​

Now,

-(4 x² - 5 x + 28)

-4 x² + 5 x - 28

-1\/16 (8 x - 5)² - 423\/16

Hence, the  equivalent expression is -4 x² + 5 x - 28.

Learn more about equation here:

https://brainly.com/question/10413253

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Answer:

y=2x+5

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

ITS RIGHT

The cost of 9/16 pounds of tea is $13.50.

In order to determine the cost of 9/16 pounds of tea, the cost of a pound of tea would be multiplied by 9/16 pounds.

Cost of 9/16 pounds of tea = 9/16 x 24

= $216/16

= $13.50

To learn more about multiplication, please check: https://brainly.com/question/3385014

Answer:

x=21.1

Step-by-step explanation:

12.8=m -8.3

12.8+8.3=m

21.1=x

x=21.1

Answer:

your answer would be 21.1

Step-by-step explanation:

so first you would have to 8.3 to 12.8 which would give you 21.1 then divide it by m but m is one so it would be just 21.1

Answer:

Its 22

Step-by-step explanation:

x is 19

so 3+19 is 22

Answer:

Average speed = 10.41 m/s

Step-by-step explanation:

It is given that, in 2009, Usain Bolt set the world record for sprinting 100 m on 9 3/5 seconds.

It can be assumed to find her average speed. Speed is equal to total distance covered divided by total time taken.

[tex]v=\dfrac{d}{t}\\\\v=\dfrac{100\ m}{9\dfrac{3}{5}\ s}\\\\=\dfrac{100}{\dfrac{48}{5}}\ m/s\\\\=\dfrac{500}{48}\ m/s\\\\=10.41\ m/s[/tex]

So, the average speed of Usain Bolt is 10.41 m/s.

Answer:

the answer is kind of 10.41 but the real answer is 10 5/12 (khan academy)

Step-by-step explanation:

just trust me ;)

Answer:

i think its a

Step-by-step explanation: