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padilas [110]
3 years ago
13

Solve for x pls hurry

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

Step-by-step explanation:

5) D

180- 65-70 = 45

3x+9=45

3x= 45-9

x=36/3=12

6)D

180-69-73=38

x+46 = 38

x= 38-46 = -8

7) A

180-24-132=24 (becasuse vertical angles are congruent)

3x=24

x=24/3=8

Digiron [165]3 years ago
5 0

Answer:

x=9

Step-by-step explanation:

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Miriam is picking out some movies to rent, and she is primarily interested in comedies and foreign films. She has narrowed down
Keith_Richards [23]

Answer:

There are 795 combinations.

Step-by-step explanation:

The number of ways or combinations in which we can select k element from a group of n elements is given by:

nCk=\frac{n!}{k!(n-k)!}

So, if Miriam want to choose 3 movies with at least two comedies, she have two options: Choose 2 comedies and 1 foreign film or choose 3 comedies.

Then, the number of combinations for every case are:

1. Choose 2 Comedies from the 10 and choose 1 foreign film from 15. This is calculated as:

10C2*15C1=\frac{10!}{2!(10-8)!}*\frac{15}{1!(15-14)!}

10C2*15C1=675

2. Choose 3 Comedies from the 10. This is calculated as:

10C3=\frac{10!}{3!(10-3)!}=120

Therefore, there are 795 combinations and it is calculated as:

675 + 120 = 795

8 0
3 years ago
the length of the altitude from the right angle to the hypotenuse of a right triangle is the _______ mean of the two segments th
Vilka [71]

Answer:

The length of the altitude from the right angle to the hypotenuse of a right triangle is the <u>geometric</u> mean of the two segments that make the hypotenuse.

7 0
3 years ago
I need help with a prople on my math for 8 grade it is y = -8x - 2
Nadusha1986 [10]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
I’ll give brainiest
ElenaW [278]

Answer:

8.33333cm

Step-by-step explanation:

Using the formula

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≈8.33333cm

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