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olasank [31]
3 years ago
13

This is hard for me can anyone help me? 9

Mathematics
1 answer:
Kazeer [188]3 years ago
5 0

Answer: -12.8x-20y+8.4

Step-by-step explanation: I multiplied the numbers in parentheses by 4.

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There are 3 feet in 1 yard this is equivalent to 12 feet in 4 yards which proportion can be used to represent this?
AysviL [449]
3/1 = 12/4

feet is to yard as feet is to yard
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Solve for x: (5 points)
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the problem is like that or is showing u how are the equations ?

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3 years ago
Options for awnser is a,b,c,d
Aleks04 [339]

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Step-by-step explanation:

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In your own words, explain the steps you would need to take to find slope from data in a table. Brainly work your magic.
mr_godi [17]

Answer:

In order to find the slope, you need to find the difference in the x values and the difference in the y values. To do this, you write out y2-y1/x2-x1, insert your x and y values, and get your answer. Then, you find your y-intercept (where the x value is 0).

6 0
3 years ago
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
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