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3 years ago

Is -2(-3) a positive or negative answer???

Mathematics

2 answers:

Natalija [7]3 years ago

5 0

Answer: positive

Step-by-step explanation: it’s positive because if you multiply two negative numbers they cancel each other out and it makes a positive number

Contact [7]3 years ago

3 0

-2(-3)

Answer: positive answer.

Whenever multiplying a -negative number and another -negative number= +positive number

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The sales tax in your city is 8.8\%8.8%, and an item costs \$63$63 before tax.

Aleonysh [2.5K]

The answer is 888100

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3 years ago

Will give 50 points for this answer. Perform the indicated operation. 22 6/7 ∙ 1 1/2

Varvara68 [4.7K]

Answer:

22 $\frac{6}{7}$ × $\frac{11}{2}$ = 125 .71

Step-by-step explanation:

22 $\frac{6}{7}$ × $\frac{11}{2}$

={[ ( 22 × 7) + 6] ÷ 7 } × $\frac{11}{2}$

= $\frac{160}{7}$ × $\frac{11}{2}$

= $\frac{1760}{14}$

= $\frac{880}{7}$

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3 years ago

4. A recent poll of 1079 adults finds that 55% of Americans support a more stringent immigration law. Construct a 99% confidence

Akimi4 [234]

Answer:

0.53060.5694

Step-by-step explanation:

USing the formuls for calculating the confidence interval for the population proportion;

CI = p±Z*√[p(1-p)/n]

p is the percentage proportion of the population 55%

Z is the z-score at 99% confidence interval = 2.576

n is the sample size = 1079

CI = 0.55 ± 2.576*[0.55(1-0.55)/√1079]

CI = 0.55 ± 2.576*[0.55(0.45)/√1079]

CI = 0.55 ± 2.576*[0.2475/√1079]

CI = 0.55 ± 2.576*[0.2475/32.85]

CI = 0.55 ± 2.576*[0.00753]

CI = 0.55 ±0.0194

CI =(0.55-0.0194, 0.55+0.0194)

CI = (0.5306, 0.5694)

Hence, a 99% confidence interval of the proportion of the population that will support such a law is 0.53060.5694

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3 years ago

In an observational study, which of the following indicates the authors' conclusions and explains study limitations?

hram777 [196]

In an observational study, During the discussion, the author can indicates conclusion and explains the limitation of the study he did.
This is where the author can give the scope and limitations of his study and also to discuss what is the future use of his study. In introduction is where he can write the reason why he studied his research, in methodology is where he can write when , where and how he did his research and in result is where he can state what problem his research answered or what’s the edge of his research.

3 0

3 years ago

Read 2 more answers

2x^2+6x-8 and x+3 in standard form

Svet_ta [14]

Answer:

x 2 + 6 x + 8 = 3

Step-by-step explanation:

To write an equation in standard form, move each term to the left side of the equation and simplify.

a x 2 + b x + c = 0

Move 3 to the left side of the equation by subtracting it from both sides.

x 2 + 6 x + 8 − 3 = 0

Subtract 3 from 8 . x 2 + 6 x + 5 = 0

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3 years ago