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Alex Ar [27]
3 years ago
9

What are the domain and the range of function ? f(x)=x-6/x^2-3x-18​

Mathematics
1 answer:
seraphim [82]3 years ago
4 0

Step-by-step explanation:

f(x)= (x-6) /(x²-3x-18)

=> (x-6) / (x-6)(x+3)

Domain = { x/ x≠6, x≠-3, x€R}

Range = { y/ y € R}

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A person sitting in the top row of the bleachers at a sporting event drops a pair of sunglasses from a height of 24 feet. The fu
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3 years ago
The common difference ,d in an arithmetic sequence whose fourth term is 16 and whose seventh therm is 31
Natali [406]

Answer: d=5

Step-by-step explanation:

Arithmetic progression

An=a1+d(n-1)

An= nth term

A1= first term

D= common difference

N= nth position

We are given the 4th and 7th terms

For 4th term,n=4

A4=a1+d(4-1)

A4= 16

16= a1+d(4-1)

16= a1+3d........equation 1

For the 7th term,n=7

A7=a1+d(7-1)

A7= 31

31=a1+6d......equation 2

Bring them together

16=a1+3d

31=a1+6d

Subtract equation 1 from 2

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Therefore, the common difference is 5

3 0
3 years ago
Nick and Sally run on the 100m straight track,Nicks's speed is 3m/s,Sally's soeed is 2m/s.If they both start from two sides of t
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They would meet 30 times after 10 minutes.

Since Nick and Sally run on the 100m straight track, and Nicks's speed is 3m / s, while Sally's speed is 2m / s, if they both start from two sides of the track, running towards each other continuously, to determine how many times they would meet each other after 10 minutes the following calculation should be performed:  

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Therefore, they would meet 30 times after 10 minutes.

Learn more about maths in brainly.com/question/25849676

4 0
2 years ago
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