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Andrew [12]
3 years ago
5

Alison has 63 books on her bookshelf. If she plans on donating % of her books, how many will Alison have left on her bookshelf?​

Mathematics
2 answers:
Leokris [45]3 years ago
8 0

Answer:

i cant answer if i dont know how much books she wants to donate

Korvikt [17]3 years ago
8 0

Answer:

How much is she donating ?

Step-by-step explanation:

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A. 30 two-point questions and 10 four-point questions

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30 multiplied by 2 equals 60

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30 plus 10 equals 40, which is the total amount of questions in the test as stated in the question.

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How many complex zeros does the polynomial function have?<br> f(x)=−3x^6−2x^4+5x+6
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one way would be to factor

I can't factor it so we will have to use Descartes' Rule of Signs which is helpful for finding how many real roots you have


it goes like this:

for a polynomial with real coefients, consider f(x)=-3x^6-2x^4+5x+6.

after arranging the terms in decending order in terms of degree, count how many times the signs of the coeffients change direction and minus 2 from that number until you get to 1 or 0. that will be the number of even roots the function can have

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a total of 2 real roots


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6-2=4 so there are 4 complex roots


you can also show that there are only 2 real roots by using a graphing utility to see that there are only 2 real roots

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