MATHEMATICS MIDDLE SCHOOL

For the data set 7 ,5,10,11,12

Answers

Answer 1

Answer:

Answer:

Standard deviation =2.6

Step-by-step explanation:

Using the formula given

S = √((1/n-1)∑(x-x⁻)²)

n = 5

∑(x-x⁻)² = 34

Therefore;

s = √(1/5(34)

= √6.8

= 2.6

The standard deviation will be 2.6

Answer 2

Answer:

Answer: 2.9 just did it on apex 6/8/2019

Step-by-step explanation:

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Simple Middle Math! I require assitance to continue!

Answers

Look at the x value, when it equals one.

We see that y = 0

Answer: y = 0

Answer:y=0

Step-by-step explanation:

A rate in which the second quantity in the comparison is one unit

Answers

I'm thinking the answer is unit rate.

Find the area of the rectangle in. 10 in 2/8 in

Answers

its 2.5 10 divided by 2/8 is 2.5

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

Answers

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.

At discount copy,12 copies cost $0.66. Melissa needs 56 copies . How much should they cost ? ....show work

Answers

Cost of 12 copies that Melissa needs to pay = $0.66
Then
Cost of 1 copy that Melissa needs to pay = (66/12) dollars
   = 11/2 dollars
Now
The cost of 56 copies that Melissa has to pay =(11/2) * 56
      = 11 * 28 dollars
      = 308 dollars
So Melissa needs to pay $308 for 56 copies.I hope the procedure is clear enough for you tounderstand. In future you can use this procedure to solve similar problems in future.

56 copies* ($0.66/ 12 copies)= $3.08
(Note that the unit cancels out so you get the answer)

The final answer is $3.08~

The values in the table represent a linear function. what is the common difference of the associated arithmetic sequence?x: 1, 2, ,3 ,4 ,5
y: 6, 22, 38, 54, 70.

A) 1
B) 20
C) 16
D) 5