There are 20 students in the class. They break up into groups of 5 for an art project. Choose the equation that shows how many groups there are.
20 x 5 = ?
20 x 4 = ?
20 divided by 4 = ?
20 divided by 5 = ?

Answer:

C

Step-by-step explanation:

Answer:

No, the graph of equation does not pass through the origin

Step-by-step explanation:

because it doesn't pass so no

Answer:

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Step-by-step explanation:

Answer:

A, rest are wrong

Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

Two sets of data, set X and set Y are given

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

Therefore, both the data sets has same range and mean.

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.  

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Answer: Range and mean = 8 of both

variance of Set X= 4.7

variance of Set Y= 4.6

Step-by-step explanation:

We know

a.) Range is the difference of the highest value and the lowest value,

Therefore, Range of set X = 12-4=8

Range of set Y = 12-4=8

Now, Mean of a given data set is the average of all the terms present in the given data set

Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8

Mean of set Y= (4+5+7+32+20+12)/10= 8

also

b.) Standard deviation tells about the variability of the date and is given by,

S.D= σ = √∑ ( X − μ )^2/n

S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7

S.D of set Y= √(16+9+1+0+4+16)/10= √4.6

Variance is the square of S.D, that is, σ^2

Therefore, variance of set X=4.6

variance of set Y= 4.7

c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.

Answer:

3500

Step-by-step explanation:

Step-by-step explanation:

The difference beteen 9.2 ounces and 8.1 ounces is  1.1 ounces

   and the difference in price is   .49

       so 1.1 ounces cost .49

           $ .49 / 1.1 oz = $  .445  per ounce

Then Reid's bowl should cost   7.8 oz  * $ .445 / oz = $3.47

Answer:

--------------------------------

The heights and shadows are proportional since they form similar triangles.

Set equal proportions and solve for the missing length:

Answer:

112 meters

Step-by-step explanation:

3.2/1.14 = x/39.75

3.2/1.14 = 2.81

2.81 * 39.75 = 111.57 = 112

Assuming that Noah uses a certain amount of sparkling water to make a liter of sparkling orange juice, let's call this amount "x" liters of sparkling water per liter of orange juice. Then, the total volume of sparkling orange juice that Noah can make from j liters of orange juice is given by:

t = x*j

Therefore, the equation that Noah can use to find t if he knows j is:

t = x*j

Answer:

∠ A = 50°

Step-by-step explanation:

The angle at the centre COB is twice the angle at the circumference CDB

∠ COB = 2 × 65° = 130°

The angles ACO = ABO = 90° ( angle between radius and tangent )

The sum of the angles in quadrilateral ABOC = 360° thus

∠ A = 360° - (90 + 90 + 130)° = 360° - 310° = 50°

Answer:

y ≤ -1/4 x -1

please see the solution on the picture..

Answer:

20

Step-by-step explanation:

N/A

Do you want me to give an example of (x,y)?

The recipe that has the greater ratio of water to dish soap is Recipe A

The graph of Recipe A created with MS Excel is attached.

A ratio is a representation of the comparison of two quantities, using division.

The data in the tables indicates that we get;

Recipe A

Ratio of water to dish soap = 10 : 4 = 5 : 2

Recipe B

Ratio of water to dish soap = 12 : 6 = 2 : 1

The ratio 5 : 2 for the water to dish soap of Recipe A is larger than the ratio 2 : 1 for the water to dish soap of Recipe B. Therefore;

Recipe A has a greater ratio of water to dish soap

Please find the plot of the three ordered pairs for the Recipe A recipe, created with MS Excel

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Answer:24 m/s

Step-by-step explanation:

(i) Equation :  y = 6.25x + 65

(ii) Price of each ticket : $6.25

(iii) Money originally in the box : $65

Explanation:

Here from table, identify the coordinates given.

Coordinates:

Find slope:

\(\sf slope: \dfrac{y_2 - y_1}{x_2- x_1} = \dfrac{\triangle y}{\triangle x} \ \ \ where \ (x_1 , \ y_1), ( x_2 , \ y_2) \ are \ points\)

\(\rightarrow \sf slope \ (m) : \dfrac{146.25-108.75}{13-7} = 6.25\)

Slope is also the price of each ticket which is $6.25

Equation:

\(\sf y - y_1 = m(x - x_1)\)

\(\rightarrow \sf y - 108.75 = 6.25(x - 7)\)

\(\rightarrow \sf y - 108.75 = 6.25x - 43.75\)

\(\rightarrow \sf y = 6.25x - 43.75 + 108.75\)

\(\rightarrow \sf y = 6.25x +65\)

To find the amount of money in the box originally, insert x which represents number of tickets sold as 0.

Originally amount of money:

\(\rightarrow \sf y = 6.25(0) +65\)

\(\rightarrow \sf y = 65\)

Hence, there were $65 in the box before any tickets were sold.

Answer:

Step-by-step explanation:

Answer:

it's Zac Efron for sure, Leonardo DiCaprio is just not the same...

Answer:

d=27 ft

Step-by-step explanation:

U need use Thales's theorem:

height of smaller triangle (15)divide by side (40) is eaqul to height of bigger triangle (d) divide by side (72).

\(\frac{15}{40} =\frac{d}{72} \\40*d=15*72\\d=\frac{15*72}{40} \\d=27\)

Answer:

Wow thats pretty hard the only things i could guess was the first one could be 18+ 18=36 and then there 6X6=36. but neither of those are greater than 50. And both of them are less than 75.

Step-by-step explanation:

Is this for a class??

Answer:

C: 5cm, 12cm, and 13 cm :)

Step-by-step explanation:

Answer:

A) 6

Step-by-step explanation:

\(y-x=2y+1\\y-(-7)=2y+1\\y+7=2y+1\\7=y+1\\6=y\)

The output is y=6 when the input is x=-7

Answer:

(3/2 m)^2 -(5n)^2^

Step-by-step explanation:

Answer: 9m^2 / 4  -  25n^2

Step-by-step explanation:

Use the identity: (a-b)(a+b)=a^2 - b^2
substitute values of a and b, where a=3/2m and b=5n.
The following simplifies to (3/2m)^2 - (5n)^2.

The research method used might be biased because B. It is likely that student opinions in one particular high school do not accurately represent the opinions of all high school students.

It should be noted that a research simply means an inquiry to understand a topic better.

In this case, the research method used might be biased because it is likely that student opinions in one particular high school do not accurately represent the opinions.

The correct options are B and C.

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Answer:

B. It is likely that student opinions does not accurately represent the student population

C. Students that take the time to complete the survey and mail it in probably feel strongly about hot lunches.

Step-by-step explanation:

'22 edg

Answer:

r]

Step-by-step explanation: