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mote1985 [20]
3 years ago
13

1.4142 / 2 (must show work)

Mathematics
1 answer:
solmaris [256]3 years ago
6 0

Answer:

2.378

Step-by-step explanation:

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What are the possible numbers of positive, negative, and complex zeros of f(x) = −3x4 + 5x3 − x2 + 8x + 4?
ale4655 [162]

Answer:

Either:  1 neg, 3 pos, 0 imaginary; 1 neg, 1 pos, 2 imaginary

Step-by-step explanation:

Look for the positive possibilities first.  Count the numbe of sign changes then subtract 2, if possible, as many times as you can.

There are 3 sign changes.  So the possible positive roots are either 3 or 1.

Now look for the negative possibilities.  Replace each x with a -x and then count the sign changes.  Replacing with -x's gives you this polynomial:

f(-x)=-3x^4-5x^3-x^2-8x+4

There is only one sign change here, so the possible negative roots is 1.  Start with the negative roots to find the possible combinations of positive, negative, and imaginary, since there is only 1.

-     1       1

+    3       1

i     0       2

Since this is a 4th degree, the number of roots we have has to add up to equal 4.

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3 years ago
HURRY ILL MARK YOU THE BRAINLEST
Veseljchak [2.6K]

Answer:

C

Step-by-step explanation:

There is no way of telling what the means are.

4 0
2 years ago
2.If the average American lives about 80 years (or about 30,000 days), how
cluponka [151]

Answer:

900000000

Step-by-step explanation:

4 0
3 years ago
Three pounds of lawn seed covers 1800 square feet. How many 4 pound bags are needed to cover 8400 square feet?
Cloud [144]
You need to find how much a pound of lawn seed covers.  Once you fine that divide it by 8400 square feet and you'll get your answer.
7 0
2 years ago
simon makes 30 cakes he gives 1/5 of the cakes to sali he gives 10% of the 30 cakes to jane what fraction of the 30 cakes does h
babunello [35]

Answer:

7/10

Step-by-step explanation:

1/5=6

10%=3

30-6-3

21

21/30=7/10

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3 years ago
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