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4 years ago

Does a kite have 4 right angles

Mathematics

2 answers:

DanielleElmas [232]4 years ago

7 0

No, a kite does not have any right angles.

Kamila [148]4 years ago

6 0

No.... but a right kite does... hope this helps!!!!

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1, In a class of 80 students in Debreberhan University, 45 are good in mathematics, 15 are good in both mathematics and in Engli

Aleks [24]

Treating the data as a Venn set, it is found that:

26 students are good in mathematics only.

28 students are not good in any of the three courses.

---------------------------------

I am going to say that:

A is the number of students good in Math.
B is the number of students good in English.
C is the number of students good in Psychology.

---------------------------------

9 are good in all of the three courses.

This means that: $A \cap B \cap C = 9$

---------------------------------

13 are good in both mathematics and psychology

This means that:

$(A \cap C) + (A \cap B \cap C) = 13$

$(A \cap C) + 9 = 13$

$(A \cap C) = 4$

---------------------------------

15 are good in both mathematics and in English

This means that:

$(A \cap B) + (A \cap B \cap C) = 15$

$(A \cap B) + 9 = 15$

$(A \cap B) = 6$

---------------------------------

16 are good in both English and psychology

This means that:

$(B \cap C) + (A \cap B \cap C) = 16$

$(B \cap C) + 9 = 16$

$(B \cap C) = 7$

---------------------------------

20 are good in psychology

This means that:

$c + (A \cap C) + (B \cap C) + (A \cap B \cap C) = 20$

$c + 4 + 7 + 9 = 20$

$c = 0$

---------------------------------

45 are good in mathematics

This means that:

$a + (A \cap B) + (A \cap C) + (A \cap B \cap C) = 45$

$a + 6 + 4 + 9 = 45$

$a = 26$

---------------------------------

Question a:

$a = 26$ , which means that 26 students are good in mathematics only.

---------------------------------

Question b:

At least one is:

$a + (A \cap B) + (A \cap C) + (B \cap C) + (A \cap B \cap C) = 26 + 6 + 4 + 7 + 9 = 52$

Thus, 80 - 52 = 28

28 students are not good in any of the three courses.

A similar problem is given at: brainly.com/question/22003843

4 0

3 years ago

What is the area of the composite figure?<br> A)70cm2<br> B)100cm2<br> C)105cm2<br> D)130cm2

MArishka [77]

The answer is B)100cm2

6 0

3 years ago

How To Make 50000 With Exponents

olya-2409 [2.1K]

5 x 10³
did you have same questions???
or did you put wrong number?

8 0

3 years ago

Read 2 more answers

What’s the answer and how did you find it ?

lozanna [386]

Answer:

Since all triangle angles add up to 180°, you can set all the angles equal to 180.

(96 + 2x + (x + 12)) = 180

You can now simplify it together

108 + 3x = 180

Now you can isolate x by itself

180 - 108 = 72

72 / 3 = 24

x = 24

6 0

3 years ago

Whats the diffrence between 3/7 and 1/14?

ZanzabumX [31]

The difference between 3/7 and 1/14 is 5/14

Difference can be described as subtracting one number from the other.

The first step is to write out the fractions and subtract 1/14 from 3/7

3/7 - 1/14

= 6-1/14

= 5/14

Hence the difference between 3/7 and 1/14 is 5/14