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Leto [7]
3 years ago
7

Which statements about the figure must be true? Select three options. A- Line segment A B is bisected by Line segment C D . B- L

ine segment C D is bisected by Line segment A B . C- AE = One-halfAB D- EF = One-halfED E- CE + EF = FD

Mathematics
1 answer:
mr_godi [17]3 years ago
3 0

Answer:

C and E

Step-by-step explanation:

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Prof Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two class
yaroslaw [1]

Answer:

Step-by-step explanation:

Given that Prof  Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two classes combined was 84.

(1) The average score for the students in the morning class was 80

(2) the average score for the students in the afternoon class was 86

Let m be the no of students in I class and n in II class

Total of I class = 80m and

Total of II class = 86n

Total of both classes = 80m +86n

Average =\frac{80m+86n}{m+n} = 84

m cannot be equal to n because in that case average would have been 83

If m >n, then say n =m+a

then average = \frac{80m+86m+86a}{2m+a} =84

Because 86 is more times added, average score would decrease hence we would not get 84.

So I class is getting less score of 80 to get a score average of more than 83 (the average) the class II should have more students.

4 0
3 years ago
Four pencils are held together with a band.
Keith_Richards [23]

Answer:20πmm

Step-by-step explanation:

each pencil diameter=10mm

each pencil diameter=radius Of The band

Radius of band=10mm

Circumference of band=2 x π x radius

Circumference of band=2xπx10

Circumference of band=20π

The length of band is the circumference Of The band

There length of band is 20πmm

4 0
3 years ago
Y dont know the answer, can you please help me?
sukhopar [10]

Answer:

it is a

Step-by-step explanation:

3 0
2 years ago
Alicia drove 265 miles in 5 hours What is the average rate that she traveled 49 miles per hour 51 miles per hour 53 miles per ho
Evgesh-ka [11]
265 / 5 = 53 miles per hr
8 0
3 years ago
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a shopkeeper buys cocacola 60 rupees a dozen and sell 6 rupees per bottle find his profit or loss persentage​
Lady_Fox [76]

Answer:

20%

Step-by-step explanation:

12 bottle is 60 rupees

each sold 6 ruppes

so 12 bottle cost 72 ruppes

12*100/60 = 20%

8 0
3 years ago
Read 2 more answers
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