I NEED HELP ON THIS PLEASE!!

Below are the test scores for Ms. Brown's 1st and 2nd period math classes. Analyze the data and choose EACH correct statement:

1st period (Class A): 10, 15, 20, 25, 30, 35, 40

2nd period (Class B): 7, 12, 17, 25, 33, 38, 43

The standard deviation for Class A is 10

The standard deviation for Class B is 12.615

These are the options:

- The mean (average) score for each class is the SAME.

-The mean (average) score for each class is DIFFERENT.

- The variance for Class A is 125.

- The variance for Class B is 159.14.

- Class A has a greater spread.

- Class B has a greater spread.

- Based on the data, a score of 8 is more likely in Class B than Class A.

- If graphed, Class B would look more like the red graph below and Class A would look more like the blue one.

Solution:  x∈Ф

No solution

Step-by-step explanation:

[tex]\sqrt{x} +5+2=\sqrt{x} -7[/tex]

[tex]5+2=-7[/tex]

[tex]7=-7[/tex]

[tex]1=-1[/tex]

x∈Ф

Answer:

if x=2 and y=3 then

3x+2y+4 ---> 3(2)+2(3)+4

3(2)+2(3)+4

6+6+4

6+10

16

Answer:

Step-by-step exThis is a way to express finding the inverse function of  

f

(

x

)

=

x

2

−

16

Explanation:

First, write the function as  

y

=

x

2

−

16

.

Next, switch the  

y

and  

x

positions.

x

=

y

2

−

16

→

Solve for  

y

in terms of  

x

x

+

16

=

y

2

y

=

√

x

+

16

The inverse function should be  

f

−

1

(

x

)

=

√

x

+

16

put the numbers vertical

The value of the function for x = -1 is 19.

Given is a function f(x) = 3x² + 16 we need to find f(-1),

To find f(-1), we substitute -1 into the function f(x) and evaluate the expression.

Let's do that:

f(x) = 3x² + 16

Substituting x = -1:

f(-1) = 3(-1)² + 16

Simplifying:

f(-1) = 3(1) + 16

f(-1) = 3 + 16

f(-1) = 19

Therefore, f(-1) is equal to 19.

Learn more about function click;

https://brainly.com/question/30721594

#SPJ2

Answer:

30 doll hairs

Step-by-step explanation:

6/12=2 which is the price of one 2 liter bottel

2x15=30

Hope this helps!!

Answer:

-51

Step-by-step explanation:

-6x4/2= -12

-12x3= -36

-36-15= -51

Hope this helps. Plz give brainliest.

Answer:

The answer is -51

Step-by-step explanation:

use order of operations!

[tex]-6*\frac{4}{2}*3-15[/tex]

first, let's simplify the equation.

[tex]-6*2*3-15[/tex]

now solve!

[tex]-6*2*3-15\\-12*3-15\\-36-15\\-51[/tex]

hope this helps!

Answer:

m=13

Step-by-step explanation:

11.50-5.00= 6.50

6.50 divided by .50

= 13 miles

m=13

Answer:

Answer:

4

Step-by-step explanation:

D=m/v

D= 8/4

D=2

Hope this helps!!

Answer:

4

Step-by-step explanation:

Its A

Because

a

is

right

Answer:

Step-by-step explanation:

A relation is said to be a function when each input value (x-value) show a distinct output value (y-value).

From the table attached,

For input value x = 0, there are multiple values of output values (y = -2, -1, 0, 1, -2).

Therefore, data given in the table doesn't represent a function.

Answer: D

Step-by-step explanation: this is because of the input and output

Answer:

if im right i think its A

Step-by-step explanation:

.

Answer:

2.4 hours

Step-by-step explanation:

The graph is a straight line graph. A straight line graph is used to represent a linear equation. A linear equation is represented by the equation: y = mx + c, where y is the dependent variable, x is the independent variable, m is the slope (rate of change) and c is the intercept.

A line passing through the point [tex](x_1,y_1)\ and\ (x_2,y_2)\[/tex] can be represented by the equation:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)[/tex]

Let y represent the distance in miles and x represent the time in hours. From the graph, the line pass through (0.5, 100) and (3.5, 700). Hence using:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\\\y-100=\frac{700-100}{3.5-0.5} (x-0.5)\\\\y-100=200(x-0.5)\\\\y-100=200x-100\\\\y=200x-100+100\\\\y=200x\\\\To\ travel\ 480 \ miles,we\ substitute\ y=480\ and\ find\ x\\\\480=200x\\\\x=480/200\\\\x=2.4\ hours[/tex]

Answer:

the answer is 30

Step-by-step explanation:

10 x 1 is 10, if you use multiple 10 x 2 it will be 20, the thing that will help is any number times 10. for example 10 x 5. use the smallest number (5) and add a zero next to it (50)

Answer:

Step-by-step explanation:

No. of pockets = 625

No. of toffees in each pocket = 100

Total no. of toffees = 625 × 100 = 62500

Hope this helps

Plz mark as brainliest!!!!!!!!

Answer:

62500

Step-by-step explanation:

if each pocket of toffee has 100 in 625 pockets then 100x625 will =62500

Answer:

The constant of proportionality is 6 the equation for this relationship is y=6x

Step-by-step explanation:

Answer:

most are expected to get nothing

Answer:

You're at a carnival and you see a game. For $2 you roll a standard six-sided die. If the number showing is a six you win $10, otherwise, you win nothing. If you're trying to make money, is it in your interest to play the game? To answer a question like this we need the concept of expected value

Step-by-step explanation:

Answer:

Zero Solutions

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x+13=3(x+6)+1

3x+13=(3)(x)+(3)(6)+1(Distribute)

3x+13=3x+18+1

3x+13=(3x)+(18+1)(Combine Like Terms)

3x+13=3x+19

3x+13=3x+19

Step 2: Subtract 3x from both sides.

3x+13−3x=3x+19−3x

13=19

Step 3: Subtract 13 from both sides.

13−13=19−13

0=6

Answer:

There are no solutions.

Answer:

Please check this image for the answer.

Answer:

Step-by-step explanation:

Formula for the circle is

Using the center (5, 6) and radius of 3

Answer:

y=x3−13x−12

Step-by-step explanation:

Answer:

(g ￮ f )(x)

Step-by-step explanation:

(g ￮ f )(x) means substitute f(x) into g(x) , that is

g( [tex]\frac{1}{x-2}[/tex] )

= [tex]\frac{1}{x-2}[/tex] + 5

Answer:

(g ￮ f )(x)

Step-by-step explanation:

Answer:

a is 5.89

b is 6

c is 5.21

d is -5

Step-by-step explanation:

the original numbers are 5,890,000 and 0.0000521 you have to place the decimal point so that there is only one number between 1 and 9 before the decimal so for the first equation that would end up being 5.89, and to get there you have to move the decimal point 6 places to the right, so the exponent on the 10 would be 6, and the second equation would be 5.21 and for this one you have to move the decimal point 5 units to the left so it would end up being -5/.

Answer:

a- [5.89]

b- [6]

c- [5.21]

d- [-5]

Step-by-step explanation:

PLEASE MARK BRAINLIEST

I NEED IT FOR A NEW RANK<3

The equation of the graph after 2 units of the right translation will be g(x) = 8(x - 2) + 1. The correct option is d.

The expression that established the relationship between the dependent variable and independent variable is referred to as a function. In the function as the value of the independent variable varies the value of the dependent variable also varies.

Given function f(x) = 8x + 1 is translated by 2 units to the right on the graph.

The function will be changed as below,

f(x) = 8x + 1

After translation, the value of x will become x - 2.

f(x) = 8(x-2) + 1

Therefore, the equation of the graph after 2 units of the right translation will be g(x) = 8(x - 2) + 1. The correct option is d.

To know more about a function follow

https://brainly.com/question/26238840

#SPJ2

Answer:

10.6

Step-by-step explanation:

To find the difference between 2 numbers, subtract the bigger one from the smaller one. In this case, 8.4-(-2.2) = 8.4 + 2.2 = 10.6

Answer:

-56 yes

        -21 no

         19 no

         36 no

Step-by-step explanation:

Inequality;

            x < -34

Problem:

-56 yes no

-21 yes no

19 yes no

36 yes no

Solution:

   The inequality signifies that x is less than -34, these are the number -34, -35, -36, -37 onward, so;

        -56 yes

        -21 no

         19 no

         36 no

Answer:

yes

no

no

no

Step-by-step explanation:

Answer:

25 buttons per package

Step-by-step explanation:

Answer:

I believe it is 25 buttons per package