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Elodia [21]
3 years ago
6

Point Q is plotted on the coordinate grid. Point P is at (20, −30). Point R is vertically above point Q. It is at the same dista

nce from point Q as point P is from point Q. Which of these shows the coordinates of point R and its distance from point Q?
On a coordinate grid from negative 50 to positive 50 in increments of 10, Point Q is plotted at the ordered pair negative 40, negative 30.

Point R is at (−40, 30), a distance of 60 units from point Q
Point R is at (−40, −10), a distance of 20 units from point Q
Point R is at (−40, −30), a distance of 60 units from point Q
Point R is at (−40, 10), a distance of 20 units from point Q
Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0

Answer:

Point R is at (−40, −10), a distance of 20 units from point Q

Step-by-step explanation:

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As an introduction to probability, a student asked to roll a fair, six sided number cube seven times the results of those seven
frosja888 [35]

Using it's concept, the standard deviation of the data is of 3.742.

<h3>What are the mean and the standard deviation of a data-set?</h3>

  • The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
  • The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.

For this data-set, the mean is:

M = (1 + 4 + 4 + 4 + 4 + 6 + 5)/7 = 4.

Hence the standard deviation is:

S = \sqrt{\frac{(1 - 4)^2 + (4 - 4)^2 + (4 - 4)^2 + (4 - 4)^2 + (4 - 4)^2 + (6 - 4)^2 + (5 - 4)^2}{7}} = 3.742

More can be learned about the standard deviation of a data-set at brainly.com/question/12180602

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3 0
1 year ago
Evaluate 3m2 -4 if m = -3​
zhenek [66]

Answer:

23

Step-by-step explanation:

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8 0
2 years ago
for her sculpture fetima cut 5 pieces of wire in the following lenghts 1.3m 4.2m 2.8m 5.9m 8.1m how much wirw did she use all al
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1.3+4.2+2.8+5.9+8.1=?
3+2+8+9+1=23
carry the 2 over to the ones place
1+4+2+5+8=2=20
add the 2
22
drop the decimal
22.3m

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To check the condition that the sample size is large enough before applying the Central Limit Theorem for Sample​ Proportions, r
skad [1K]

Answer:

a. 1o0

Step-by-step explanation:

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Fudgin [204]
The correct answer is A
2×2×5×5×5×7
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3 years ago
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