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zhuklara [117]
3 years ago
12

Prove that the product of -1 and -1 equals to +1

Mathematics
2 answers:
konstantin123 [22]3 years ago
5 0
Multiplying 2 negatives will equal a postive.
White raven [17]3 years ago
5 0
Multiplying two positive numbers or two negative numbers always equal a positive number
Multiplying a positive number and a negative number always equals a negative number

Example

1- 2x2=4. -3x(-4)=12

2- -2x2=(-4). -3x4= (-12)

Hope this helps
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Sari is factoring the polynomial 2x2 5x 3. if one factor is (x 1), what is the other factor? 2x−3 2x 3 3x−2 3x 2
asambeis [7]

The other factor of the polynomial which Sari is factoring and found that the one factor of this equation is (x+1) is (2x+3).

<h3>What is a factor of polynomial?</h3>

The factor of a polynomial is the terms in linear form, which are, when multiplied together, give the original polynomial equation as a result.

The polynomial which Sari is factoring is,

2x^2 +5x+ 3

One factor of this equation is

(x +1)

Factor the given polynomial using the split the middle term method,

2x^2 +5x+ 3\\2x^2 +2x+3x+ 3\\2x(x+1)+3(x+1)\\(x+1)(2x+3)

Thus, the other factor of the polynomial which Sari is factoring and found that the one factor of this equation is (x+1) is (2x+3).

Learn more about factor of polynomial here;

brainly.com/question/24380382

8 0
2 years ago
Pleaseeeeeeeeee help 50 points pleaseeeeeeeeeeeeeeeeeeee
vazorg [7]

Answer:for the one with 16 is 28 and the one with 7 is 4

Step-by-step explanation:

5 0
3 years ago
Find the length of the hypotenuse. a=20 in b=21in c=? SHOW WORK
Ulleksa [173]

Answer:

41 or 20

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
When finding the margin of error for the mean of a normally distributed population from a sample, what is the critical probabili
svlad2 [7]

Critical probability is the essentially cut-off value. The critical probability when the confidence level of 58% is 0.79.

<h3>What is the critical probability?</h3>

Critical probability is the essentially cut-off value that defines the region where the test statistic is unlikely to lie.

As it is given that the confidence level is 58%. therefore, in order to calculate the critical probability, we need to calculate the margin of error within a set of data, and  it is given by the formula

\rm Critical\ Probability, (P*) = 1-\dfrac{\alpha }{2}

where the value of the α is expressed as,

\alpha= 1 -\dfrac{\rm Confidence\ interval}{100}

Now, as the confidence interval is given to us, therefore, the value of the alpha can be written as,

\alpha= 1 -\dfrac{\rm 58\%}{100} = 0.42

Further, the critical probability, assuming a confidence level of 58% is,

\rm Critical\ Probability, (P*) = 1-\dfrac{\alpha }{2}\\\\\rm Critical\ Probability, (P*) = 1-\dfrac{0.42}{2} = 0.79

Hence, the critical probability is 0.79.

Learn more about Critical Probability:

brainly.com/question/5625386

6 0
2 years ago
Which ordered pair describes a point with a location in the first quadrant of a coordinate plane?
Serga [27]

Answer:

(3, 2)

Step-by-step explanation:

7 0
3 years ago
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