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grandymaker [24]
3 years ago
14

ivan and polina have each drawn a conclusion about multiplying negative fractions. Ivan: The products of an even number of negat

ive fractions is always positive. Polina : the product of an odd number of negative fractions is always negative.
Mathematics
2 answers:
Rama09 [41]3 years ago
5 0

Answer:

Both Ivan and Polina.

Step-by-step explanation:

-2/1 \times -2/1=4

-3/1 \times -3/1 \times -3/1=-27

vladimir2022 [97]3 years ago
4 0

Answer:

Both are correct

-1 x -1 = 1

-1 x -1 x -1 = -1

Hope this helps

Step-by-step explanation:

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a parallelogram has one angle that measures 40. what are the measures of the other three angles in the parallelogram?
KonstantinChe [14]
Since one side is 40°, you subtract that from 180.

180° - 40°= 140°.

So therefore your missing side lengths are 140, 40, and 140.

hopefully this helps





6 0
3 years ago
Read 2 more answers
Factor the polynomial, x2 + 5x + 6
patriot [66]

Answer:

Choice b.

x^{2} + 5\, x + 6 = (x + 3)\, (x + 2).

Step-by-step explanation:

The highest power of the variable x in this polynomial is 2. In other words, this polynomial is quadratic.

It is thus possible to apply the quadratic formula to find the "roots" of this polynomial. (A root of a polynomial is a value of the variable that would set the polynomial to 0.)

After finding these roots, it would be possible to factorize this polynomial using the Factor Theorem.

Apply the quadratic formula to find the two roots that would set this quadratic polynomial to 0. The discriminant of this polynomial is (5^{2} - 4 \times 1 \times 6) = 1.

\begin{aligned}x_{1} &= \frac{-5 + \sqrt{1}}{2\times 1} \\ &= \frac{-5 + 1}{2} \\ &= -2\end{aligned}.

Similarly:

\begin{aligned}x_{2} &= \frac{-5 - \sqrt{1}}{2\times 1} \\ &= \frac{-5 - 1}{2} \\ &= -3\end{aligned}.

By the Factor Theorem, if x = x_{0} is a root of a polynomial, then (x - x_0) would be a factor of that polynomial. Note the minus sign between x and x_{0}.

  • The root x = -2 corresponds to the factor (x - (-2)), which simplifies to (x + 2).
  • The root x = -3 corresponds to the factor (x - (-3)), which simplifies to (x + 3).

Verify that (x + 2)\, (x + 3) indeed expands to the original polynomial:

\begin{aligned}& (x + 2)\, (x + 3) \\ =\; & x^{2} + 2\, x + 3\, x + 6 \\ =\; & x^{2} + 5\, x + 6\end{aligned}.

4 0
2 years ago
What is the value of x?
Fittoniya [83]

Answer:

a

Step-by-step explanation:

6^2+8^2=100

sqrt of 100 = 10

4 0
3 years ago
Read 2 more answers
BE READY, GAME SHOW
marta [7]

Let the required no. be x

Then the equation is-

(150/100)x = 750

=> x = 750 × (100/150)

=> x = 500

Ans- 750 is 150 percent of 500.

6 0
2 years ago
Read 2 more answers
Pleas Help!!!<br> |2s-7|≥-1
Paul [167]

Answer:

\frac{1}{2}s=\frac{7}{2}

Step-by-step explanation:

6 0
3 years ago
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