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shusha [124]
3 years ago
14

Please help!! I really need it guys please help me...​

Mathematics
2 answers:
lapo4ka [179]3 years ago
8 0

Answer:

a=45°

b=45°

c=135°

olganol [36]3 years ago
6 0

Answer:

a=45° because they are corresponding angles

c=135°

b=45°

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A conductor needs 5 cellists and 5 violinists to play at a diplomatic event. to do this, he ranks the orchestra's 10 cellists an
DaniilM [7]
Ranking is very critical in this problem. Therefore, the most applicable mathematical theory is permutations.

Ranking possible for the cellists:
Needed cellists = 5
Total available cellists = 10
Possible number of rankings = 10P5 = 10!/(10-5)! = 30240

Ranking possible for the violinists:
Needed violinists = 5
Total available = 16
Possible number of rankings = 16P5 = 16!/(16-5)! = 524160

Therefore,
Ratio of rankings (cellists to violinists) = 30240/524160 = 3/52
3 0
3 years ago
Help fast please!!! due soon
aliina [53]

Answer           2.8  

Step-by-step explanation:

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4 0
3 years ago
120 books inceased by 55%
bogdanovich [222]

Answer:

186 books with the 55% increase

Step-by-step explanation:

120 times 55% increase = 66 more in increase

Now take the increase and add it to the original amount of books to get the number of books with the increase

66 + 120 = 186

8 0
3 years ago
the last sentence says "which statement best interprets the quotient" also this need to be done before 8:00 :) plzz helpp​
Mandarinka [93]

Answer:

A. There are 5 1/6 Three fourths

in 4 1/8

Step-by-step explanation:

5 0
3 years ago
The logo for Chris's Calculator Company is 3 semicircles. The logo will be placed on the company building and will be 4 feet tal
Keith_Richards [23]

Answer:

The area of the logo is 18.84\ ft^{2}

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The area of a semicircle is equal to

A=\frac{1}{2}\pi r^{2}

so

The area of the logo is equal to multiply by 3 the area of one semicircle

A=\frac{3}{2}\pi r^{2}

we have

r=4/2=2\ ft -----> the radius is half the diameter

substitute

A=\frac{3}{2}(3.14)(2)^{2}=18.84\ ft^{2}

8 0
3 years ago
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