MATHEMATICS MIDDLE SCHOOL

Find p (2) when p = 15 (prob & stats)

Answers

Answer 1

Answer:

Answer:

find p (2) when p = 15 (prob & stats)

the answer is 30

Step-by-step explanation:

since p is given to be 15 then p(2) will be expressed as p x 2

15 x 2

=30

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What are the side lengths of a rectangle if the area = 40 in and the perimeter = 48 in

Answers

4, 10, 4, 10. 10*4 gives area of 40. 10+10+4+4 gives 48 as shown in question

$a,b-the\ side\ lengths\ of\ a\ rectangle\n \na\cdot b=40\ [in^2]\ \ \wedge\ \ \ 2\cdot(a+b)=48\ [in]\n \n a+b=24\ \ \ \Rightarrow\ \ \ a=24-b\ \ \ \Rightarrow\ \ \ ab=(24-b)b=24b-b^2\n \nab=40\ \ \ \Rightarrow\ \ \ 24b-b^2=40\ \ \ \Rightarrow\ \ \ -b^2+24b-40=0\ /\cdot(-1)\n \nb^2-24b+40=0\ \ \Rightarrow\ \Delta=(-24)^2-4\cdot40=576-160=416=16\cdot 26\n \n$

$√(\Delta) =4 √(26) \ \ \ \Rightarrow\ \ \ b_1= (24-4 √(26) )/(2)=12-2 √(26)\ \Rightarrow\ a_1=12+2 √(26) \n \n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ b_2= (24+4 √(26) )/(2)=12+2 √(26)\ \Rightarrow\ a_2=12-2 √(26)$

List all of the numbers between 20 and 30 that are prime

Answers

23 and 29 are the only 2 prime numbers from 20 to 30

A spinner has three equal sections of red, blue, and yellow. If the spinner is spun 250 times how many will the spinner land on a color that is not blue.

Answers

There are three equal sections on the spinner: one is red, one is blue, and one is yellow.

From this, we can figure out that the probability of the spinner landing on the blue section is 1/3. Thus, the probability of the spinner not landing on the blue section is 1 - 1/3 or 2/3.

Therefore, if the spinner is spun 250 times, and we are trying to figure out how many times it WON'T land on blue, then we multiple the probability of this happening (2/3) by the number of times that we spin the spinner (250).

2/3 * 250 = 166 2/3

If the spinner is spun 250 times, it will land on a color that is not blue 166 2/3 (approximately 167) times.

Answer:

167 if you round it up.

Create three functions one linear function one quadratic function, and one cubic function that all have a solution at (-5,32)

Answers

The equations are- 1) y=-6x+2, 2) y = x^2+7, 3) y = -1/5x^3+7

Step-Wise explanation-

Linear function

let y = -6x+2

if we put x=5 then- y = 32

quadratic function

let y = x^2+7

if we put x=5 then we get y = 32

Cubic function

let y = -1/5x^3+7

if we again put x=5 then we get y= 32

Hence the required functions are y = -6x+2, y = x^2+7, y = -1/5x^3+7

What are functions?

the function is the relationship between units of values. e g y=f(x), for each value of x there is its exists in a set of y. x is an impartial variable even as Y depends variable.

Learn more about functions here

brainly.com/question/6561461

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Answer:

Quadratic: y=x^2-27x-160

not too sure of the other ones sorry

Step-by-step explanation:

A rectangular prism has a length of 8 in., a width of 4 in., and a height of 214 in. The prism is filled with cubes that have edge lengths of 14 in. How many cubes are needed to fill the rectangular prism? Enter your answer in the box. To fill the rectangular prism, ___ cubes are needed. PLS HELP