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Ganezh [65]
3 years ago
13

Let \[f(x) = \frac{3x - 7}{x + 1}.\] find the domain of f. give your answer as an interval.

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0
The domain of f is all real numbers except for -1.

so the domain is x ∈ (-∞,-1)U(-1,∞)
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The answer to this question is area=length*width
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3 years ago
Replace * with a monomial in such a way, that the trinomial becomes a perfect square. *+12x+1
Mrrafil [7]

Answer: * = 36x^2

Note: Im guessing you're here for rsm struggles. That's how I found this question. I searched the web for the answer to this rsm problem, but I couldnt find it. I was happy to find this brainly link, but annoyed to find it was unanswered. I did the problem, and now i'll help future rsm strugglers out. Thanks for posting this question.

Step-by-step explanation:

Ok, so we know that trinomials like this are squares of binomials. this in mind, we know that it can also be written as (x+y)^2. (also brainly's exponents feature used to be better, if the exponents are confusing you, comment.) Using the (x+y)^2 equation, you know that by simplifying it, you get x^2+2xy+y^2. Basically we're looking for x^2. Using the middle term, 2xy, or 12x in this equation, we can find x. since we know the square root of 1 is 1, we know 12=2x. This is kinda confusing, but basically since the answer is 6, we know that the x-term is 6x. We square 6x and get 36x^2. guaranteed to work on the rsm student portal, i'm in rsm and i just answered this question.

Hope this helps! Also, im not usually too active on brainly unless im looking for HW answers, so if you understand this explanation and you see a confused comment, help out a friend and answer it. Happy holidays!

4 0
2 years ago
Frank and Gertrude mow lawns for extra money over the summer. Frank's income is determined by f(x) = 5x + 15, where x is the num
Zepler [3.9K]
H(x)=5x+15+4x+20

if x=4, together it would be 5(4)+15+4(4)+20
h(x)=20+15+16+20=71
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If Frank worked alone, he'd get 5(4)+15= 35
He'd make more working together. 
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3 years ago
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harina [27]
I hope this helps you

5 0
2 years ago
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Find the circumference of circle with a radius of 63mm. Use 22/7 for pi
GREYUIT [131]
The circumference of circle with a radius of 63mm is 395.84

I hope this helps!
3 0
2 years ago
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