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klio [65]
3 years ago
9

The points (9,-2) and (10,r) fall on a line with a slope of 2 what is the value of r.

Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Answer:

r=0

Step-by-step explanation:

slope=(y2-y1)/(x2-x1)

2=(r+2)/(10-9)=r+2

r=2-2=0

r=0

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Five college students' scores on a test are 25, 25, 30, 35, and 40. what is the mean for this set of scores?
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Answer:

Mean= 31

Step-by-step explanation:

To find the mean you need to add all the number together and then divide by how many ever numbers there are.

In this case

25 + 25 + 30 + 35 + 40=155

There are 5 numbers so you would divide by 5

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=31

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Erin is taking part in a play at the community theater. The cast and crew ordered T-shirts for all the volunteers. The cost of a
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3 0
2 years ago
Freddy drilled into a piece of wood and a joist to attach them. He drilled 4 inches and the wood was 1 1/3 inches thick.
Angelina_Jolie [31]

The depth of the joist that was drilled by Freddy is 5 1/3 inches.

From the information given, we are informed that Freddy drilled into a piece of wood and a joist to attach them and that be drilled 4 inches and the wood was 1 1/3 inches thick.

Therefore, to get the depth that was drilled, we'll need to add the fractions given together. This will be:

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Therefore, the depth of the joist that was drilled by Freddy is 5 1/3 inches.

Read related link on:

brainly.com/question/24429956

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