Ibrahim has two lists of numbers. The mean of the numbers in the first list is p. The mean of the numbers in the second list is q. Ibrahim combines the two lists into one new list of numbers. Ibrahim says ‘The mean of the new list of numbers is equal to (p+q)/2 .' One of two conditions must be satisfied for Ibrahim to be correct. (b) Write down each of these conditions.

Answers

Answer 1

Step-by-step explanation:

The two conditions that must be satisfied for Ibrahim to be correct are:

1. The range of numbers in each list must also be the same.

2. The number of numbers in both list must also be same.


Related Questions

7(12b + 9) - b what is the awnser

Answers

Answer:

12b + 14p - 7

Step-by-step explanation:

It is already simplified.

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BRAINIST & 20 POINTS


*random answers will be reported*

Answers

Answer:

(0, 13)

Step-by-step explanation:

The midpoint is halfway between the line segment. First find the distance from the starting point to the midpoint.

2-1 = 1. So Since the midpoint is behind the start point, we are going backwards (moving to the left on the x axis).

So 1 space left from the midpoint is 1-1=0.

For y, the distance between the start and mid is 6 - -1 = 6+1 = 7 spaces. Then add 7 spaces to the midpoint value of 6, so 7+6 = 13. We moved upwards on the y axis.

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dilation with a scale factor of 2 centered at (1 2)

Answers

Answer:

The answer is below

Step-by-step explanation:

The question is not complete, but I would show how to solve.

Transformation is the movement of a point from its initial location to a new location. Types of transformation is reflection, translation, rotation and dilation.

Dilation is the enlargement or reduction of the size of an object by a factor.

If a point A(x, y) is dilated by a factor k with a center of dilation at (a, b), then the new point is:

A'(x, y) = [k(x - a) + a, k(y - b) + b]

Let us assume that point A(2, 0) dilation with a scale factor of 2 centered at (1, 2). Hence the new point is:

A'(x, y) = [2(2 - 1) + 1, 2(0 - 2) + 2]  = (3, -2)

80 middle-school students went on a field trip to watch a performance of Alice In Wonderland. When the teacher took a survey, 70% of the students responded that they enjoyed the play. About how many students enjoyed the play?

Answers

Answer:

56 students

Step-by-step explanation:

Because there are 80 students and only 70% enjoyed it, 70% is equal to 0.7 so you would multiply 80 by 0.7.

Solve for all values of c in the simplest form |14-c|=15

Answers

Step-by-step explanation:

|14- c| = 15

=> 14 - c = 15 or 14 - c = -15

=> c = -1 or c = 29.

I need help!!! pls.. help me to solve this (urgent) plssss...this is my last question:(​

Answers

Answer:

0.5

Step-by-step explanation:

Distance of OL = 0 - (-5)

                         = 0 + 5

                         = 5

Distance of OK = 2(5)

                          = 10

Gradient = [tex]\frac{rise}{run}[/tex]

               = [tex]\frac{0-(-5)}{10-0}[/tex]

               = [tex]\frac{5}{10}[/tex]

               = 0.5

A parachutist's rate during a free fall reaches kilometers per hour. What is this rate in meters per second? At this rate, how many meters will the parachutist fall during seconds of free fall? Do not round your answers.

Answers

Complete question :

A parachutist's speed during a free fall reaches 162 kilometers per hour. What is this speed in meters per second? At this speed, how many meters will the parachutist fall during 20 seconds of free fall? Do not round your answers.

Answer:

45 m/s ; 900 meters

Step-by-step explanation:

Given that :

Speed = 162 kilometers per hour ;

The speed in meters per second can be found by:

162 km/hr = (162 * 1000)m / (60 * 60) second

162 km/hr = 162000m / 3600 s

162 km/hr = 45 m/s

At this speed, how many meters will the parachutist fall during 20 seconds of free fall?

Speed of free fall = 45m /s

Distance in meters after 20 seconds :

(45 m/s * 20s) = 900 meters

A chrome book cost 249.99 at target on Black Friday it is on sale for 15 % off what is the price of the computer on Black Friday

Answers

Answer:

The price is 212.49

Step-by-step explanation:

sorry if wrong.

Can someone write an equation out of X= -4 Y= -8 Z= 3

Answers

Answer:

2y + 4z = x

Step-by-step explanation:

Given

[tex]x = -4[/tex]

[tex]y = -8[/tex]

[tex]z = 3[/tex]

Required

Write an equation that which is true for the above parameters

This question will be answered using trial by error method and the solution is not limited to one equation.

One equation that matches the values above is:.

[tex]2y + 4z = x[/tex]

To check:

Substitute the values of x, y and z in the above equation.

[tex]2y + 4z = x[/tex]

[tex]2 * -8 + 4 * 3 = -4[/tex]

[tex]-16 + 12 = -4[/tex]

[tex]-4 = -4[/tex]

Hence,

Because both sides of the equation are one and the same (-4), [tex]2y + 4z = x[/tex] is true for the above values of x, y and z.

Choose the correct formula for the function h. HELP NEEDED ASAP

Answers

Answer:

The answer is C.

Step-by-step explanation:

h(x) = 3x + 2 - 1

Is this a square root graph?
Is this graph a reflection of its parent graph?
this graph shifted _
The equation to this graph would transform the parent function f(x) to _

Answers

Answer:

Thus, [tex]y=-\sqrt{x+3}[/tex] represents the transformed graph on the attached figure, which is a translated square root graph i.e. vertically reflected across the y-axis and also horizontally translated or shifted 3 units to the left.

Step-by-step explanation:

Consider the function

y = f(x)

The rule of horizontal translation

y = f(x-h)

When 'h' is positive, the function is shifted to the right.

When 'h' is negative, the function is shifted to the left.

The rule of implying vertical reflection across the x-axis

y = -f(x)

Applying the rule:

We know that the square root function is

[tex]y=\sqrt{x}[/tex]

We know that if the graph would be reflected across the x-axis, then

[tex]y=-\sqrt{x}[/tex]

We know that   is horizontally translated or shifted 3 units to the left, it implies  +

3 inside the radical implies. Then the transformed function becomes .

Please check the attached diagram. From the diagram,

The blue graph shows the parent function [tex]y=\sqrt{x}[/tex].The red graph shows the transformed function i.e. vertically reflected across the y-axis and also horizontally translated or shifted 3 units to the left.

Thus, [tex]y=-\sqrt{x+3}[/tex] represents the transformed graph on the attached figure, which is a translated square root graph i.e. vertically reflected across the y-axis and also horizontally translated or shifted 3 units to the left.

A conductor is mapping a trip and records the distance the train travels over certain time intervals. The train travels at a constant speed. What is its speed?

Answers

Answer:

Speed = 25miles per hour

Step-by-step explanation:

Represent the time with x and the distance with y

So, from the attachment; we have the following details:

[tex](x_1,y_1) = (0.5,12.5)[/tex]

[tex](x_2,y_2) = (1,25)[/tex]

[tex](x_3,y_3) = (1.5,37.5)[/tex]

Required

Determine the constant speed

Because the train travelled at a constant speed, the speed can be calculated using:

[tex]Speed = \frac{y_3}{x_3}=\frac{y_2}{x_2}=\frac{y_1}{x_1}[/tex]

[tex]Speed = \frac{12.5}{0.5}=\frac{25}{1}=\frac{37.5}{1.5}[/tex]

[tex]Speed = 25=25=25[/tex]

Notice that the result of each division is the same.

Hence, the constant speed is:

Speed = 25miles per hour


What is the value of 12+6/N
when N = 2?
A. 6
B. 9
C. 12
D. 18

Answers

12 +6 =18 18/2= 9 it answer

Evaluate if y=4 and z= -2.

7y+z= ?​

Answers

Answer:

i hope this helps you

7.4+(-2)

28-2

26

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

Plug 4 in for y and -2 in for z giving you: 7(4)+(-2). 7*4=28 giving you 28+(-2). the portion +(-2) is the same as -2. This gives you 28-2 which is 26.

On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distance from the y-axis to the same point. What is sin of theta

Answers

Answer:

2/√5

Step-by-step explanation:

A unit circle is a circle of unit radius. This means that the radius of a unit circle is 1.

Let a represent the horizontal distance. Therefore the vertical distance = twice the horizontal distance = 2a

We can get the hypotenuse using Pythagoras theorem:

hypotenuse² = a² + (2a)²

hypotenuse² = a² + 4a²

hypotenuse² = 5a²

hypotenuse = √5a²

hypotenuse = a√5

sin(θ) = opposite / hypotenuse

sin(θ) = vertical distance / hypotenuse

sin(θ) = 2a / a√5

sin(θ) = 2/√5

Evaluate the polynomial for the given value of x.
- 4x5 - 5x4 – 3x3 - x? for x = -2
A. 97
B. 68
C. 64
D. 63

Answers

Answer:

I might be wrong but I think it is A

While touring the city, Bernie
buys lunch for his family from a
food truck. He purchases one
taco for $2.75 and four
cheeseburgers. If he spent a
total of $23.75, how much was
each cheeseburger?

Answers

Answer:

$5.25

Step-by-step explanation:

23.75-2.75= is the price of four cheeseburgers, which is 21. 21/4 is the price of one. So its 5.25

graph the line with the equation y= 1/2x -1

Answers

Answer:

Start at the y-intercept, (0,-1). Next, go up one and to the right 2, plot a point. Keep going up one and to the right 2 until you reach the end of the graph. Next, go back to your y-intercept. Go down one and to the left 2. Keep going down and to the left until you reach the end of the graph. Connect all points.

Step-by-step explanation:

Start at the y-intercept, (0,-1). Next, go up one and to the right 2, plot a point. Keep going up one and to the right 2 until you reach the end of the graph. Next, go back to your y-intercept. Go down one and to the left 2. Keep going down and to the left until you reach the end of the graph. Connect all points.

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

The coordinates that we can plot on the graph are:

(1, -1/2), (2, 0), (3, 1/2), and (4, 1)

The graph is given below

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

The equation of a line y = (1/2)x - 1

We will find some coordinates from the equation.

When x = 1,

y = 1/2 - 1

y = -1/2

When x = 2,

y = 1/2 x 2 - 1

y = 1 - 1 = 0

When x  = 3,

y = 1/2 x 3 - 1

y = 3/2 - 1

y = 1/2

When x = 4.

y = 4/2 - 1

y = 2 - 1

y = 1

The coordinates that we can plot on the graph are:

(1, -1/2), (2, 0), (3, 1/2), and (4, 1)

The graph is given below

Thus,

The coordinates that we can plot on the graph are:

(1, -1/2), (2, 0), (3, 1/2), and (4, 1)

The graph is given below

Learn more about coordinates here:

https://brainly.com/question/13118993

#SPJ2

When dividing 3x4 – x^2 – 2x + 6 by 2x2 - x - 5, the remainder will be ...?

Answers

Answer: -7.5 maybe

Step-by-step explanation:

if x = 1/2 when y = 36 what id x when y = 144

Answers

when y = 144, x = 2

144/36= 4

1/2(4)= 2

x = 2

Find the sum
(4 - n) + 2(-5n + 3)

Answers

Answer:

−11n + 10

Step-by-step explanation:

(4-n) + 2 (-5n+3)

4 - n + -10n + 6

-11n+4+6

The answer:-11n+10

The diameter of a circle is 22 miles. What is the circle's area? Use 3.14 for ​

Answers

Answer:

379.94

Step-by-step explanation:

area of a circle is, pi times radius powered by 2, with this in mind-

r= 11, pi=3.14

3.14(11)^2

3.14(121)

=379.94

Find the third side in simplest radical form: √92 6

Answers

8 is the answer just had this

The residents of a city voted on wether to raise property taxes. The ratio of yes votes to no votes was 8 to 5. If there was 6856 yes votes, what was the total number of votes

Answers

Answer:

The total number of votes cast in the election was 11,141.

Step-by-step explanation:

To determine the number of negative votes in the voting, taking into account that the ratio of votes between positive and negative is 8 to 5 and that there were 6,856 positive votes, it is necessary to perform the following calculation:

6.856 / 8 x 5 = X

857 x 5 = X

4.285 = X

Therefore, there were 4,285 negative votes in the election. So, since 4,285 + 6,856 equals 11,141, the total number of votes cast in the election was 11,141.

A train covers the distance between two cities A and B at 70km/h during certain time. If it goes 10km/h faster, it will cover the same distance in one hour less. Find the distance between the two cities and the time it takes to do the first trip

Answers

Answer:

distance between 2 cities is 490km

time taken for first trip is 7 hours

Step-by-step explanation:

speed. time

70 x

10. 1

= 10x =70*1

x=70/10

=7 hours

distance= speed*time

=70*7

=490km

I NEED HELP ASAP ! PLS!

Answers

Answer:

x = 106°

Step-by-step explanation:

sum of interior opposite angles of a triangular is equal to a exterior angle

= x +22= 40 +88

= x = 128- 22

x = 106 °

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Your Explanation:

Answers

Answer:

No because if you set them equivelent to each other you get 12=0

Step-by-step explanation:

1/4(12x + 24) - 9x = -6(x + 1)

3x + 6 - 9x = -6x - 6

-6x + 6 = -6x - 6

12 = 0x

I hope this helps

How do you find x when y =2

Answers

Answer:

u got to let us see the question too... we can't find x just like that-

Katie is purchasing plates and mugs for her house.
She would like to buy at least 8 items. Plates cost
$8 each and the mugs cost $7 each, and she plans
to spend no more than $112. Write a system to
model the situation and then solve.

Answers

Step-by-step explanation:

Plate: $8 each

Mug: $7 each

Spend Limit: $112

Items Wanted: 8

Considering she wants eight items, she can split that in half and buy four of each item, plate and mug.

8 * 4 = 32

$32 for 4 plates.

7 * 4 = 28

$28 for 4 mugs.

However, if she wanted to spend all the money, she could buy a few more of each item.

PLEASE HELP!!!!!!!What has to be true if you want to solve a quadratic?

Answers

Answer:

Here you go

Step-by-step explanation:

The quadratic formula helps you solve quadratic equations, and is probably one of the top five formulas in math. Then the formula will help you find the roots of a quadratic equation, i.e. the values of x where this equation is solved.

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