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iogann1982 [59]
2 years ago
14

Which of the following would offer proof that a relation is a function?

Mathematics
1 answer:
Ede4ka [16]2 years ago
8 0
That would be the vertical line test
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Adding/Subtracting rational expressions
Leona [35]
7]
 6/(x-1)-5x/4
subtracting the above we put the fraction under the same denominator:
 6/(x-1)-5x/4
multiplying the denominators we get:
4(x-1)
thus subtracting we get:
6/(x-1)-5x/4
=(4*6-5x(x-1))/[4(x-1)]
=[24-5x^2+5x]/(4x-4)
Answer:
(-5x^2+5x+24)/(4x-4)


9]
3/(x+7)+4/(x-8)
the common denominator is:
(x+7)*(x-8)=(x+7)(x-8)
thus adding the fractions we put them under the same denominator as follows:
[3(x-8)+4(x+7)]/[(x+7)(x-8)]
=[3x-24+4x+28]/[(x+7)(x-8)]
=(7x+4)/[(x+7)(x-8)]

5 0
2 years ago
Let
kramer

I think when you copied and pasted your question it re arranged itself

3 0
2 years ago
Chad is eating a 50-gram chocolate bar which contains 30% cocoa. How many grams of cocoa are in the chocolate bar?
Allushta [10]

Answer: 15 grams

If he had 100 grams of candy bar, then 30% of that is 30 grams (since 30/100 = 30%). Cut this in half and we end up with 30/2 = 15.

Another way to find the answer is to multiply 50 and 0.30 which is the decimal form of 30%. So we have 50*0.30 = 15 which is the same answer.

8 0
3 years ago
-Continued answer to my last question
Natalka [10]

Answer:

It's the first graph.

Step-by-step explanation:

The data points resemble the data in the table more than the second.

6 0
3 years ago
Read 2 more answers
What is the answer. 9 1/3-2/3
stiv31 [10]
8 and 2/3 because each whole can be split to 3/3 :)
3 0
2 years ago
Read 2 more answers
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