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jek_recluse [69]
3 years ago
8

Hey, I'm dumb and need help.

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

Parallelogram.

Alternate Interior angle.

Reflexive.

ASA

Step-by-step explanation:

AS for the last part i've only seen it in the States. Its something like CBCDC.

Basically it means the sides are congruent because  they are corresponding sides of 2 congruent triangles.

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Mis Brown graded 84 papers. If the ratio of science papers to math papers is 2:10 how many math papers did she grade?​
mr Goodwill [35]

Answer:

70

Step-by-step explanation:

2 + 10 = 12

84 ÷ 12 = 7

7 x 10 = 70

She graded 70 maths papers and 14 science papers.

5 0
3 years ago
There are 7 acts in a talent show.
lara31 [8.8K]

Answer:

<u><em></em></u>

  • <u><em>Event A: 1/35</em></u>
  • <u><em>Event B: 1/840</em></u>

<u><em></em></u>

Explanation:

<u>Event A</u>

For the event A, the order of the first 4 acts does not matter.

The number of different four acts taken from a set of seven acts, when the order does not matter, is calculated using the concept of combinations.

Thus, the number of ways that the first <em>four acts</em> can be scheduled is:

          C(m,n)=\dfrac{m!}{n!(m-n)!}

         C(7,4)=\dfrac{7!}{4!(7-4)!}=\dfrac{7!}{4!(3)!}=35

And<em> the number of ways that four acts is the singer, the juggler, the guitarist, and the violinist, in any order</em>, is 1: C(4,4).

Therefore the<em> probability of Event A</em> is:

           P(A)=1/35

Event B

Now the order matters. The difference between combinations and permutations is ordering. When the order matters you need to use permutations.

The number of ways in which <em>four acts </em>can be scheculed when the order matters is:

           P(m,n)=\dfrac{m!}{(m-n)!}

         P(m,n)=\dfrac{7!}{(7-4)!}=P(m,n)=\dfrac{7!}{4!}=840

The number of ways <em>the comedian is first, the guitarist is second, the dancer is third, and the juggler is fourth</em> is 1: P(4,4)

Therefore, <em>the probability of Event B</em> is:

            P(B)=1/840

7 0
3 years ago
Please help I don't understand i'm in the lowest class?
Anna71 [15]

Answer:

Step-by-step explanation:

6 0
2 years ago
Digital Literacy Semi Activity 5.1.1 - Telecommunications Review1. Match the parts of software applications with what they do:Al
Ilya [14]

1-g

2-f

3-a

5-g

6-h

7-b

8-a

3 0
1 year ago
Can someone simplify8x + 5x please
igor_vitrenko [27]

Answer:

13x

because you would comibne like terms, so you add the 8 and 5.

6 0
3 years ago
Read 2 more answers
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