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3 years ago

What is the scale factor from AABC to ADEF?

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

8 0

Answer:

C. 1/12

Step-by-step explanation:

The scale can be calculated by comparing side lenghts

AC is similar to FD and AB is similar to FE and BC is similar to ED

AB = 2 and FE = 24 so AB/FE is = 2/24 that's simplified is 1/12

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A data set has 40 data points. Enter values to answer each of the questions below.

alukav5142 [94]

When the number of data points is odd the formula to find the Ranking of the Median is (n+1)/2, When the number of data points is even the ranking of the Median will be the AVERAGE of n/2 + n/2 +1, where n is the number of data points.

In our case the ranking of the Median is the average (20+21)/2 = 20.5.

1- How many points are below the Median =20

Lower half = 20, Upper half = 20 & Median = 20.5 (Don't forget Median is the ranking of data points).

Again the 1st Quartile is at 10.5, so 10 data points are below the 1st Quartile

and 20 points are between Q1 & Q3

5 0

3 years ago

Read 2 more answers

Suppose y varies directly with x, and y = -4 when x = 25. What is x when y = 10? SHOW ALL YOUR WORK HERE OR YOU WON'T GET CREDIT

Stolb23 [73]

Answer:

x = -62.5

Step-by-step explanation:

y = kx

-4 = k(25)

k = -4/25

y = (-4/25)x

10 = (-4/25)x

x = 10 × 25/-4

x = -62.5

6 0

3 years ago

1/2*(4+6*3)-9 show the valué of the expresión

Gwar [14]

Remember PEMDAS. So start with the parentheses and do the multiplication inside the parentheses first.
  1/2 (4+6*3) -9 multiply 6 and 3
  1/2 (4 + 18) -9 add 4 and 18   1/2 (22) -9 multiply 1/2 and 22
  11 - 9 subtract 11 and 9
2

6 0

3 years ago

You are buying decorations for a birthday party. Six rolls of crepe paper and 20 balloons cost $11.90. After you start decoratin

olga2289 [7]

Answer: $1.15

Step-by-step explanation:

The question is How much did each roll of crepe paper cost?

Let the cost of crepe paper be x

Let the cost of balloons be y.

Six rolls of crepe paper and 20 balloons cost $11.90. This will be:

6x + 20y = 11.90 ......... i

2 more rolls of crepe paper and 15 more balloons for $6.05. This will be:

2x + 15y = 6.05 ......... ii

6x + 20y = 11.90 ......... i

2x + 15y = 6.05 ......... ii

Multiply equation i by 15

Multiply equation ii by 20

90x + 300y = 178.50 ........ iii

40x + 300y = 121 ........ iv

Subtract iv from iii

50x = 57.50

x = 57.50/50

x = 1.15

Therefore, a crepe paper cost $1.15

6 0

3 years ago

Determine if m^2-8m+16. is a perfect square trinomial and factor.

shutvik [7]

Factor m2−8m+16
m2−8m+16
=(m−4)(m−4)

Answer:
(m−4)(m−4)
don't know if this helps or not

4 0

4 years ago