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iren2701 [21]
3 years ago
8

If 20 were added to each of the vlaues in a data set that originally had a standard deviation of 8, the standard deviation of th

e resulting data would be 28
Mathematics
1 answer:
Nitella [24]3 years ago
3 0

Answer:

False (I assume it's a true/false question)

Step-by-step explanation:

Standard deviation measures how spread out the data is.  If you add 8 to all the data values, the distribution of data moves to the right (on a graph) 8 units. The shifted data are no more and no less spread out than before.  The standard deviation does not change.

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9/8 divided by 3/8<br><br> 3/5 divided by 2/3
suter [353]
9/8 divided by 3/8 is 3 (because of the same denominator look at the first number)

3/5 divided by 2/3 is 0.9 hope this helps
8 0
3 years ago
Solve each system of equations. Equation 1: x+3y=-5 Equation 2: 9x+3y=3
bekas [8.4K]

Answer:

Equation 1: x-3y+5=0

Equation 2: 3x+y-1=0

Step-by-step explanation:

Equation 1: x+3y=-5

                  x+3y+5=-5+5

                  x=3y+5=0

Equation 2: 9x+3y-3=0

                   3x+y-1=0

4 0
3 years ago
I played 4 games of badmintonand scored 12 points per game. The average score of the first 3 games was 10 points per game. how m
Ne4ueva [31]
You scored 18 points in your fourth game because if you played 4 games and got 12 points each game that equals 48 points all together and if the average is 10 points for the first 3 games that equals 30 points for the three games so 48-30=18
6 0
3 years ago
A car rental company charges a one-time application fee of 40 dollars, 55 dollars per day, and 13 cents per mile for its cars. A
liberstina [14]

Answer:

A) C(d,m) = 40 + 55d + 0.13m

B) $448

Step-by-step explanation:

Let 'd' be the number of days and 'm' the number of miles driven.

A) The cost function that describes a fixed amount of $40, added to a variable amount of $55 per day (55d) and a variable amount of 13 cents per mile (0.13m) is:

C(d,m) = 40 +55d +0.13m

B) If  d = 5 and m =600, the total cost is:

C(5,600) = 40 +55*6 +0.13*600\\C(5,600)=\$448

The cost is $448.

3 0
3 years ago
Read 2 more answers
An appliance store bought a refrigerator at a cost of $795.60 and marked it up 60%. Later on, the store marked it down 50%. What
babymother [125]

Answer:

An appliance store-bought a refrigerator at a cost of $795.60 and marked it up 60%. Later on, the store marked it down 50%.

Step-by-step explanation:

hope it help!

5 0
2 years ago
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