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LUCKY_DIMON [66]
2 years ago
6

Select all of the following functions that are quadratic.

Mathematics
1 answer:
wlad13 [49]2 years ago
7 0
1st,2nd,3rd,4th that is your answer
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Your personal library contains books written by 165 authors. 60% of the authors are men. 40% of the authors write only nonfictio
Scorpion4ik [409]

Answer:

The probability that a book picked at random is either a work written by an author who writes only nonfiction or a work written by a man is 75.8%.

Step-by-step explanation:

The probability, in this case, has to be calculated using the sum rule because the events are independent. 

P = P(men) + P(non-fiction) - P(men non-fiction); where P is the probability. It means the probability that the random book was written by a man plus the probability that the random book was non-fiction minus the probability that the random book was written by a man who writes non-fiction. The probability that the random book was written by a man who writes non-fiction has to be subtracted, if not you will be duplicating it. 

Facts:

P(men) = 60% = 99/165

P(non-fiction) = 40% = 66/165

P(men non-fiction) = 40/165

P = P(men) + P(non-fiction) – P(men non-fiction)

P = 99/165 + 66/165 – 40/165

P = 125/165

P = 0.758 or 75.8%

3 0
3 years ago
CAN YOU PLS HELP MEEEE
laiz [17]

Answer:

10x - 2y

Step-by-step explanation:

<em>simplify</em><em> </em><em>the</em><em> </em><em>expression</em><em>.</em><em> </em>

<em>8x</em><em>–</em><em>2y</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em>

<em>combine</em><em> </em><em>numbers</em><em> </em><em>that</em><em> </em><em>have</em><em> </em><em>the</em><em> </em><em>same</em><em> </em><em>variables</em><em> </em>

<em>8x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em><em>+</em><em> </em><em>x</em><em> </em>

<em>*</em><em>those</em><em> </em><em>x</em><em> </em><em>have</em><em> </em><em>1</em><em> </em><em>coefficient</em><em> </em><em>each</em><em>.</em><em> </em>

<em>it</em><em> </em><em>will</em><em> </em><em>be</em><em> </em><em>8x</em><em>+</em><em>1x</em><em>+</em><em>1x</em><em> </em><em>=</em><em> </em><em>10x</em><em> </em><em>then</em><em> </em><em>–</em><em>2y</em>

<em>10x</em><em>–</em><em>2y</em><em>.</em>

Hope it helps :)

8 0
3 years ago
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Line AB contains points A (−3, 5) and B (−3, 3). Line AB has a slope that is
fenix001 [56]
Slope = y1-y2/x1-x2 .. 5-3/-3--3 = math error (its parallel to y axis)
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If a population has a birth rate of 40 individuals per 1,000 per year and a death rate of 30 individuals per 1,000 per year, how
larisa [96]
It will increase by 10 individuals per 100 per year
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3 years ago
Can someone help me ​
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Answer:

the answer is 9889977.998

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3 years ago
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