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mash [69]
3 years ago
9

What is the sign of the product?

Mathematics
2 answers:
pishuonlain [190]3 years ago
8 0
= (0.3)(-9.2)(-8.1)(4.2)(-0.8) \\ = (-2.76)(-8.1)(4.2)(-0.8) \\ = (22.356)(4.2)(-0.8) \\ = (93.8952)(-0.8) \\ = -75.11616

So, yeah the product is Nagative.
KengaRu [80]3 years ago
7 0
The simplest way is to count the number of NEGATIVE SIGNS in the problem before doing any multiplying If there are an ODD number of NEGATIVE TERMS the answer is NEGATIVE if an EVEN NUMBER the answer is POSITIVE In this problem there are 3 negative terms, so the answer is NEGATIVE after knowing the sign, just multiply the numbers without worrying about the sign, you already know it
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4 0
2 years ago
Find the values of k so that each remainder is three. <br> 10. (x^2+ 5x + 7) = (x + k)
Goryan [66]

Answer:

k=1\text{ or } k=4

Step-by-step explanation:

We can use the Polynomial Remainder Theorem. It states that if we divide a polynomial P(x) by a <em>binomial</em> in the form (x - a), then our remainder will be P(a).

We are dividing:

(x^2+5x+7)\div(x+k)

So, a polynomial by a binomial factor.

Our factor is (x + k) or (x - (-k)). Using the form (x - a), our a = -k.

We want our remainder to be 3. So, P(a)=P(-k)=3.

Therefore:

(-k)^2+5(-k)+7=3

Simplify:

k^2-5k+7=3

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k^2-5k+4=0

Factor:

(k-1)(k-4)=0

Zero Product Property:

k-1=0\text{ or } k-4=0

Solve:

k=1\text{ or } k=4

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(x^2+5x+7)\div(x+1)\text{ or } (x^2+5x+7)\div(x+4)

Will yield 3 as the remainder.

5 0
3 years ago
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