The table shows the number of hours spent practicing singing each week in three samples of 10 randomly selected chorus members.


Which statement is most accurate based on the data?


A). A prediction based on the data is reliable, because the means of

the samples are close together.


B). A prediction based on the data is reliable because each sample

has 10 data points.


C). A prediction based on the data is not completely reliable, because

the means are not the same.


D.) An predition based on the data is not completely reliable, because

the means of samples 1 and 2 are greater than 9 and the mean of

sample 3 is less than 9.

Answer:

A

D

E

It is not B, or C.

Answer:

X coordinate

Y coordinate

rectangle

Step-by-step explanation:

The  statements is true about the graph of these points is

The coordinates of the ordered pairs satisfy the equation .

The slope of a line is the measure of the steepness and the direction of the line. The slope of a line is defined as the change in y coordinate with respect to the change in x coordinate of that line.

Slope = m = tan θ = (y2 - y1)/(x2 - x1)

where, m is the slope, and θ is the angle made by the line with the positive x-axis.

According to the question

The set of points (–3, 7), (0, –3) and (6, 1) are plotted in the coordinate plane.

Conditions which are true in options for set of points .

a> They do not represent a linear function.

A linear function is defined as a function that has either one or two variables without exponents.

This statement is false they do represent the linear function.

b>The slopes of the lines between each pair of points are equal.

slopes between (–3, 7), (0, –3)

Slope = (y2 - y1)/(x2 - x1)

Slope = (7 - (-3))/( (-3))

Slope = [tex]\frac{-10}{3}[/tex]

slopes between (0, –3) and (6, 1)

Slope = (y2 - y1)/(x2 - x1)

Slope = (1 - (-3))/(6- (0))

Slope = [tex]\frac{2}{3}[/tex]

Hence, this statement is false .

c>The first coordinate of each ordered pair is always less than the second coordinate.

This statement is false as in both ordered pair  (0, –3) and (6, 1)  first coordinate is bigger than second

d>The coordinates of the ordered pairs satisfy the equation .

This is true as ordered pairs satisfy the equation .

y = mx +c

Hence, the  statements is true about the graph of these points is

The coordinates of the ordered pairs satisfy the equation .

To know more about slope here:

https://brainly.com/question/3605446

#SPJ3

Answer:

1

Step-by-step explanation:

because there is only one x

The coefficient of 'x' in the expression 4 + 3y² + x will be 1. Then the correct option is B.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The expression is given below.

⇒ 4 + 3y² + x

The coefficient of x is the number attached to the variable 'x'. Then the coefficient of x will be 1.

The coefficient of 'x' in the expression 4 + 3y² + x will be 1. Then the correct option is B.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

p(a)=1/5

p(e)=1/4

Step-by-step explanation:

There are 5 vowels: a, e, i, o, u.

The probability of a is 1/5 or 20%.

Then without replacement there are 4 cards left.

The probability of e becomes 1/4 or 25%

Answer:

30

Step-by-step explanation:

If w=6, you need to multiply 5 by 6 to get 30.

Answer:

140

Step-by-step explanation:

5x4x7=140

Answer:

X = 10/3

Step-by-step explanation:

8x - 4y = -40

y - 4x

10+2x - 4x = 10 - 2x

8(10 - 2x) -4(10 + 2x) = -40

x = 10/3

61-34x98+90+21-4

We will put these in parenthesis to make it easier to read, and to mark what needs done first.

61-(34x98)+90+21-4

34x98=3,332

Now that the multiplication is done, we add and subtract.

90+21=111

61-3,332=-3271

-3271+111-4

We can reorder this to make it easier. Plus, we'll subtract -4 and -3271.

111-3275=-3164

---

sorry if this doesn't help

Answer:

x=12

a=48

b=82

c=50

Step-by-step explanation:

Answer:

-36

Step-by-step explanation:

P - Parentheses

E - Exponents

M - Multiplication

D - Division

A - Addition

S - Subtraction

Sorry if this is wrong! Have a great day/night! <)

Answer:

d = 13.6

(I answered first. Brainliest please! :D)

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

A is the correct answer

Answer:

Answer C is incorrect.

Step-by-step explanation:

The slope of a parabola is constantly changing

Answer:

the answer is c

Step-by-step explanation:

Answer:

I think it is C

Step-by-step explanation:

Have a good toseday

Answer:

Jim ran 3/8 of a mile

Step-by-step explanation:

(5/8 - 1/4) = (5/8 - 2/8) = 3/8 of a mile

The answer should be 38.99

The circumference of the circle is 22π.

The area of the circle is given by;

[tex]\rm Area \ of \ circle=\pi r^2[/tex]

The area of a circle is 121π in².

The circumference of the circle is;

[tex]\rm Circumference =2\pi r[/tex]

The area of the circle is;

[tex]\rm Area \ of \ circle=\pi r^2\\\\121\pi =\pi r^2\\\\r^2=121\\\\r^2=11^2\\\\r=11[/tex]

The circumference of the circle is;

[tex]\rm Circumference =2\pi r\\\\Circumference =2\pi \times 11 \\\\Circumference =22\pi[/tex]

Hence, the circumference of the circle is 22π.

Learn more about area of circle here;

https://brainly.com/question/22720888

#SPJ2

Answer: C

Step-by-step explanation: your fast answer is C.

Listing the numbers, it is found that the numbers in which digits add to 8 and differ by 4 are: 26 and 62.

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

A similar problem is given at https://brainly.com/question/24132092

Answer:

car travels in  6.67

mark me as brainiest plz my first briniest can it be u

Answer:

1206 cm³

Step-by-step explanation:

The formula for the volume of a cone is [tex]\pi r^{2} (\frac{h}{3} )[/tex] with h being the height of the cone. in this case 8cm

So, the volume will be 3.14x12^2(8/3)

Which gives us the answer 1205.76cm cubed or 1206 rounded up to the nearest integer

Answer:

1. =     2. >

Step-by-step explanation:

Answer:
1. 1,314 in^2
2. 465in^2
3. 464in^2
4. 157.5in^2

Step-by-step explanation:

The steps to this is easy. since they give you the nets.
1. The formula for finding the surface area of a cuboid is 2(LB + LH + BH). Where L is the length, B is the breadth or width and H is the height. In this question, the length is 26 in, width is 17 in and height is 5 in. Therefore, the equation will be 2(26in(17in) + 26in(5in) + 17in(5in)). From there its simple application of the rules of BODMAS.

2. Since the net of this pyramid is given, the surface area is simply the area of the base plus the areas of all the individual triangular faces.

3.The net has been given so we apply the same method here. we find the area of the rectangular and the triangular faces and sum them up. ( For this question, it seems that there isnt any possible answer that matches mine. So I apologise for the inconvenience.)

4.We find the area of just one of the triangular faces and multiply it by 4 to get our answer.

Answer:

Lake Eyre is higher by 242 meters.

Step-by-step explanation:

Jericho = -258

Lake Eyre = -16

-258 - (-16) = -242

Lake Eyre is 242 meters higher than Jericho below sea level.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication, and division,

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
The city of Jericho, in the Middle East, has the lowest elevation of any city on Earth. It is 258 meters below sea level,
Lake Eyre, the lowest point in Australia, is only 16 meters below sea level.
Difference in the elevation = 258 - 16 = 242

Thus, Lake Eyre is 242 meters higher than Jericho below sea level.

Learn more about arithmetic here:

https://brainly.com/question/11424589

#SPJ2

Answer:

y = [tex]\frac{1}{3}x[/tex] -2 is the equation.

Answer:

y= 1/3 x-2

step by step explanation: