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dem82 [27]
3 years ago
8

Helpppppppppppppppppppp

Mathematics
1 answer:
Nonamiya [84]3 years ago
5 0

Answer:

a. 3

b. 6

and i got the last answer as 11

I am not too sure about the last one, sorry. Hope this helped!

Step-by-step explanation:

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Deidre is picking out some movies to rent, and she is primarily interested in documentaries and children's movies. She has narro
exis [7]

Answer: 6630

Step-by-step explanation:

Given , Number of documentaries = 17

Number of children's movies = 20

Total movies = 17+20=37

Number of combinations of r things taken out of things = ^nC_r=\dfrac{n!}{r!(n-r)!}

Now, the number of different combinations of 3 movies can she rent if she wants at least one documentary

= (1 documentary+2 children's movies  , 2 documentary+1 children's movies , 3 documentary+0 children's movies)

=^{17}C_1\times^{20}C_{2}+^{17}C_2\times^{20}C_{1}+^{17}C_3\times^{20}C_{0}

=(17)\times\dfrac{20!}{2!18!}+\dfrac{17!}{2!15!}\times(20)+\dfrac{17!}{3!14!}(1)\\\\=3230+2720+680=6630

Hence, the  number of different combinations of 3 movies can she rent if she wants at least one documentary is 6630 .

3 0
3 years ago
Select one: <br> A. Supplementary<br> B. Vertical<br> C. Complementary<br> D. Acute
Rom4ik [11]

Shouldnt there be a picture or something?

5 0
3 years ago
The growing interest in and use of the Internet have forced many companies into considering ways to sell their products on the W
Romashka [77]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Education : 11 11 8 13 17 11 11 11 19 13 15 9 15 15 11

Internet use 10 5 0 14 24 0 15 12 20 10 5 8 12 15 0

Labeled scatter plot of Education and Internet Use is attached in the picture below.

Yes there appears to be a linear relationship between the two variables (Education and Internet Use) as the data points appears to have an upward trend depicted by the linear trend line in the graph.

The correlation Coefficient value which is measures the degree of linear relationship between education and internet use is 0.7048

4 0
2 years ago
The two lines intersected by the transversal are barrel. What is the value of x?
Vladimir79 [104]
The value of x is 11

Because both the angles should be equal
3 0
3 years ago
This please I fricking can't understand the question<br>.............​
guapka [62]

Answer:

sorry i don't know

Step-by-step explanation:

7 0
2 years ago
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