MATHEMATICS MIDDLE SCHOOL

The endpoints of cd are C (-4,10) and D (-4,10) the coordinates of the midpoint M of CD are

Answers

Answer 1

Answer:

The endpoints C and D has nomidpoint M.

Step-by-step explanation:

step 1: The given endpoints of C and D are (-4,10) and (-4,10)

step 2: Midpoint formula = ((x1+x2)/2 , (y1+y2)/2)

step 3: Here, C(-4,10) = (x1,y1)

D(-4,10) = (x2,y2)

step 4: The midpoint represents the half distance of the line CD. Since C and D are same points, they cannot form a line. Therefore, the endpoints CD have no midpoint.

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On a road map of Virginia, the distance from Alexandria to Roanoke is 7.6 cm. What is the actual distance between the cities if the map scale is 2 cm = 50 mi?

Answers

1cm =50/2=25mi
7,6 cm=7,6x25=190 mi

Answer: 190 miles/304 km

Step-by-step explanation:

simplify 2:80 to 1:40

7.6x40=304 km

The sum of two numbers is 17.The difference of those same two numbers is 3.

Find the two numbers, and their equations

Answers

a+b= 17
a-b=3
a=10
b=7
That is the answer

A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable and write an expression to represent the total cost of hiring a plumber

Answers

The expression for the total cost of hiring a plumber will be equal to $50 + $40(h).

What is an expression?

Mathematical actions are called expressions if they have at least two terms that are related by an operator and include either numbers, variables, or both. Adding, subtraction, multiplying, and division are all reflection coefficient operations. A mathematical operation such as reduction, addition, multiplication, or division is used to integrate terms into an expression.

As per the given statement in the question,

The charge for a plumber to visit the house = $50

The additional charge per hour = $40

The expression for t hours will be,

A = $50 + $40(h),

Here, A is the total amount and h is the number of hours the plumber is working.

To know more about the expression:

brainly.com/question/14083225

#SPJ2

x = # of hours worked

Total cost = 40x + 50

g(x) = x^2 is transformed to obtain function h: h(x) = g(x) + 1, how is the graph of g different from the graph of h?

Answers

Answer:

the function would undergo a vertical transformation one unit up

Step-by-step explanation:

instead of the vertex at 0,0 it would now be at 0,1

The Answer Is:

The graph of h is the graph of g vertically shifted up 1 unit.

Part 1- If 10 is 20% of a value, what is 50% of the value?Part 2- If 12 is 25% of the value, what is the value?

Part 3- If 6.5 is 22% of a value, what is the value? (round to the nearest tenth)

Part 4- If 6 is 33% of the value, what is the value?

Answers

25
48
29.5
18.18 are the four answers respectively

How to find the mad of the set of data?

Answers

Answer:

add up all numbers

then divide that number by the amount of numbers.

Step-by-step explanation:

mad is basically finding the average of a set of numbers.

and how do you do that?

first, add up all numbers

ex: 1, 5,3,10,6,20,15,15,14 --> this adds up to 90.

then divide that number by the amount of numbers.

count how much numbers ehere are: there are 9 numbers.

divide 90 by 9 and the mad/average is 10.

plz give brainliestttt

Answer:

Here is an example..:

Find the M.A.D of the set of data

10.2 , 9.4, 11.3, 12.9

( so, we just have to add up all numbers )

10.2 + 9.4 + 11.3 + 12.9 = 43.8

Then we divide them by 4, you might be wondering..why 4?

that's because there are about 4 numbers in the data set.

So:

43.8

____= 10.95 (we found the mean! :D)

After that, we just have to subtract the mean (10.95) to the same numbers (or the so called data set)

10.95 - 10.2 = 0.75

10.95 - 9.4 = 1.55

10.95 - 11.3 = 0.35

10.95 - 12.9 = 1.95

For our final step, we just add up all the difference, then, divide it by 4 again.

0.75 + 1.55 + 0.35 + 1.95 = 4.6

--------- = 1.15

~hope this helps, have a good day/afternoon/night~

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