Mr. López teaches his classes how to make maraca instruments by filling plastic eggshells with dried beans Mr. López uses the equation p= 0.75n to find the number of pounds, p, of beans needed for “n” classes.What is the constant of proportionality between p and n?


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Answers

Answer 1
Answer:
The constant of proportionality between p (pounds of beans) and n (number of classes) in the equation p = 0.75n is 0.75. In this equation, 0.75 represents the ratio of the number of pounds of beans (p) to the number of classes (n). It tells you that for each class, 0.75 pounds of beans are needed, making it the constant of proportionality.

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What is the range of the function f(x) = -2x + 5 when the domain is {-5, 5}.

Answers

Answer:

{-5,15}

Step-by-step explanation:

because this function is constantly decreasing, we can get our range by looking at the endpoints:

f(-5) = 15

f(5) = -5

Find the​ (a) mean,​ (b) median,​ (c) mode, and​ (d) midrange for the data and then​ (e) answer the given question. Listed below are the weights in pounds of 1111 players randomly selected from the roster of a championship sports team. Are the results likely to be representative of all players in that​ sport's league? 186 229 240 257 187 221 309 293 257 274 221

Answers

Answer:

(a) Mean =243.0909

(b) Median = 240

In other words it is the middle value of the data arranged in order.

(c) Mode =  221  and 257

(d) Mid Range =   247.5

e)

Variance = 1578.5037

Standard Deviation = 39.730

Range = 309-186= 123

(e)  No the results are not  likely to be representative of all players in that​ sport's league because they are not similar.

Step-by-step explanation:

First arranging the data in ascending order

186 187 221 221 229 240 257 257  274  293    309

(a) Mean = Sum of observations/ No of observations

       = 186 + 187 + 221 +221 + 229 + 240 + 257 + 257 + 274 + 293 + 309 /11

= 2674/11=

= 243.0909

(b) Median for un grouped data is

Here n = 11 and n/2 = 11/2 is not an integer

Median = Results obtained by ([n/2] +1) player

                   = (11/2 +1) = 6th player in ordered data

                = 240

In other words it is the middle value of the data arranged in order.

(c) Mode = Most frequent values.

There are two modes : 221  and 257 . These both values occur repeatedly.

(d) Mid Range = Maximum Value + minimum value/ 2= 186+ 309/2=  247.5

Now we will find the variance and standard deviation

The variance is given by

s² =  (186-243.0909)²+ (187-243.0909)²+ (221-243.0909)²+ (221 -243.0909)²+(229-243.0909)²+ (240-243.0909)²+( 257-243.0909)²+ (257 -243.0909)²+ (274-243.0909)²+ ( 293-243.0909)²+    (309 -243.0909)²/11-1

s²=  3259.370 + 3146.139+ 488.008+ 488.008+ 198.553+ 9.554+ 193.463 + 193.463 + 955.372 +  2509.098 + 4344.009/10

s²= 15,785.037/10= 1578.5037

And Standard Deviation = s= √1578.5037= 39.730

Variance = 1578.5037

Standard Deviation = 39.730

Range = 309-186= 123

(e)  No the results are not  likely to be representative of all players in that​ sport's league because they are not similar.

What's the average rate of the graph from x = -2 to x = 0?​

Answers

Answer:

-2

Step-by-step explanation:

I hope this helps you :)

-KeairaDickson

What is this equation in slope intercept form?
-4x + 3y = 2

Answers

Since the formula you are looking for is y=mx+b that means you have to leave the y alone. Your first step is to move the -4 to the other side which means your new equation is 3y=4x+2. Now you want to leave the y alone so what you have to do is divide everything by 3 so that would be y=4/3x+2/3.
1. Place y variable on one side:

3y = 2 + 4x

2. Simplify to make y variable one.

y = 2/3 + 4/3 x

3. Rearrange in the form Y = mX + c, where c is the y intercept and m is the slope.
 
y = 4/3 x + 2/3

Thus, slope is 4/3 and y intercept is 2/3

What is the LCM of the numbers 3, 6, and 9?A.
9
B.
18
C.
36
D.
54

Answers

the LCM is option B. 18

Answer:

The LCM of the numbers 3, 6, and 9, is 18.

Step-by-step explanation:

The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.

What is the slope of 6x-3y=18??

Answers

the \ slope \ intercept \ form \ is : \n \n y= mx +b \n \n6x-3y=18 \n \n-3y=-6x+18 \ \ /:(-3)\n \ny=(-6)/(-3)x + (18)/(-3) \n \ny=2x-6 \n \n m = 2