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Mathematics

2 answers:

timofeeve [1]3 years ago

7 0

Answer:

Step-by-step explanation:

The answer is B. Shape A is a square which all the sides are the same length. This mean it has 2 pairs of parallel sides. Shape B is a rectangle which also has 2 pairs of parallel sides. Shape C is rhombus which also has 2 pairs of parallel sides. Shape D is a trapezoid which only has 1 pair of parallel sides.

Nutka1998 [239]3 years ago

5 0

Answer:

Step-by-step explanation:

the second one is correct. the first one is wrong because shape C also has those angles. the third one is wrong because shape C also has no perpendicular sides. the fourth one is wrong because shape C also has 2 pairs of angles with the same measure.

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How many ways are there to distribute n graded homeworks to n students such that none of them gets their own homework back?

Yuri [45]

Assume N students

Student 1 can get (n-1) papers
Student 2 can get (n-1) papers
Student 3 can get (n-1) papers
etc
Student N can get (n-1) papers

So for N students you can have N(n-1)

8 0

3 years ago

Determine the solution to the system of equations by using substitution. <br> Y=4x+10<br> Y=-5x-10

amm1812

Steps:
1. Substitute the y in 4x + 10 with -5x-10
-5x-10= 4x + 10
2. Add 5x on both sides
-10= 9x + 10
3. Subtract 10 on both sides
-20= 9x
4. Divide by 9 on both sides
5. Your answer is
X= -20/9

7 0

3 years ago

Read 2 more answers

Plz answer this i need help its done today

olga55 [171]

Answer:

1) 1/10

2) 1/2

3) 1/5

Step-by-step explanation:

1 favorable outcome and 10 total outcomes.

$P(3) = \frac{1}{10}$