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Ipatiy [6.2K]
3 years ago
5

What is the length of the midsegment of the trapezoid

Mathematics
1 answer:
makkiz [27]3 years ago
7 0

Answer:

The length of the mid-segment of the trapezoid = 7

==================================================

Step-by-step explanation:

The mid-segment of a trapezoid is the segment that connecting the midpoints of the two non-parallel sides.

As shown in the figure the two non-parallel sides are AB and CD

∴ The mid-segment of the trapezoid = \frac{BC +AD}{2}

From the figure: BC = 8  and AD = 6

∴ The mid-segment of the trapezoid = \frac{8+6}{2} = 7

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For a sample variance of n = 36 that has a sample variance of 1,296, what is the estimated error for the sample?
lukranit [14]

Answer:

6

Step-by-step explanation:

Given :

Sample size, n = 36

Sample variance, s² = 1296

The estimated standard error can be obtained using the relation :

Standard Error, S. E = standard deviation / √n

Standard deviation, s = √1296 = 36

S.E = 36/√36

S.E = 36/6

S.E = 6

Hence, estimated standard error = 6

7 0
3 years ago
Subtract 1.05 from a certain number. Multiply the difference by 0.8, add 2.84 to the product then divide the sum by 0.01 and get
attashe74 [19]
Just do the whole process backwards
700*0.01=7
7-2.84=4.16
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8 0
3 years ago
3x+1y=6 2x-1y=-1 plz helpllllllllll
Gwar [14]

Answer:

x=1 y=3

Step-by-step explanation:

3x+y=6 is the same as y=6-3x

2x-y=-1 is the same as y=2x+1

set them equal to each other

6-3x=2x+1

5x=5

x=1

substitute the value of x into either equation

y=2(1) +1

y=3

4 0
3 years ago
Given that XY is a line segment with the angle a = 48° and c = 59°, work out the value of the angle marked b.
olga nikolaevna [1]

Answer:

a+b+c = 180

48+59+b=180

107+b=180

b=180-107

b=73

6 0
2 years ago
2+8+5+9+90=<br>3+45+111=​
Anastasy [175]

Answer:

1) 114

2) 159

Step-by-step explanation:

2+8+5+9+90 = 114

3+45+111 = 159

Hope this helps.

8 0
3 years ago
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