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Llana [10]
3 years ago
11

Given the triangle below, what is mA, rounded to the nearest tenth?

Mathematics
1 answer:
Katen [24]3 years ago
7 0

Answer:

A. 24.2°

Step-by-step explanation:

I'm correct if I'm rwong

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A) How many ways can 2 integers from 1,2,...,100 be selected
Anna007 [38]

Answer with explanation:

→Number of Integers from 1 to 100

                                            =100(50 Odd +50 Even)

→50 Even =2,4,6,8,10,12,14,16,...............................100

→50 Odd=1,3,,5,7,9,..................................99.

→Sum of Two even integers is even.

→Sum of two odd Integers is odd.

→Sum of an Odd and even Integer is Odd.

(a)

Number of ways of Selecting 2 integers from 50 Integers ,so that their sum is even,

   =Selecting 2 Even integers from 50 Even Integers , and Selecting 2 Odd integers from 50 Odd integers ,as Order of arrangement is not Important, ,

        =_{2}^{50}\textrm{C}+_{2}^{50}\textrm{C}\\\\=\frac{50!}{(50-2)!(2!)}+\frac{50!}{(50-2)!(2!)}\\\\=\frac{50!}{48!\times 2!}+\frac{50!}{48!\times 2!}\\\\=\frac{50 \times 49}{2}+\frac{50 \times 49}{2}\\\\=1225+1225\\\\=2450

=4900 ways

(b)

Number of ways of Selecting 2 integers from 100 Integers ,so that their sum is Odd,

   =Selecting 1 even integer from 50 Integers, and 1 Odd integer from 50 Odd integers, as Order of arrangement is not Important,

        =_{1}^{50}\textrm{C}\times _{1}^{50}\textrm{C}\\\\=\frac{50!}{(50-1)!(1!)} \times \frac{50!}{(50-1)!(1!)}\\\\=\frac{50!}{49!\times 1!}\times \frac{50!}{49!\times 1!}\\\\=50\times 50\\\\=2500

=2500 ways

7 0
3 years ago
Find the area someone please help
a_sh-v [17]

Answer:

33.3cm²

Step-by-step explanation:

9 multiplied by 3.7 is equal to 33.3cm²

5 0
2 years ago
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Answer:

18 inches

Step-by-step explanation:

8+4=12

12+6=18

18 inches

Someone deleted my answer so I posted it again.

Hope this helps!

8 0
3 years ago
Create matrices with eye, ones, diag and triu Create the following matrices with the help ofthe matrix generation functions eye
Valentin [98]

Answer: rate brainliest pls

Step-by-step explanation:

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3 years ago
Solve for x. x-(4 + x) = x + 4<br> A -8<br> B 0<br> C 4<br> D 8
mrs_skeptik [129]

Answer:

A

Step-by-step explanation:

x -4 -x=x+4. -4=x+4. x=-8

5 0
2 years ago
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