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ki77a [65]
3 years ago
13

Please help I need answers ASAP

Mathematics
1 answer:
algol [13]3 years ago
3 0
Answer is D (3x^6+7x^3-2x^2-2)

When distributing exponents in this case you want to multiply them
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The following probabilities are based on data collected from U.S. adults during the National Health Interview Survey 2005-2007.
Nutka1998 [239]

Answer:

Required Probability  =0.421  

Step-by-step explanation:

Let's first arrange the data given in a more presentable way: So, we have the following probabilities for different categories.

Underweight (UW) = 0.019

Healthy Weight (HW) = 0.377

Overweight but Not Obese (NO) = 0.35

Obese (O) = 0.254

<em>Now, let's calculate the probability that a randomly selected American adult who weighs more than the healthy weight range is obese:</em>

Required Probability = Probability(obese)/Probability(Overweight + Obese)

                                    = P (O) /P(NO + O)                                  

                                    =0.254/(0.35+0.254)

Required Probability  =0.421

where, O for Obese and NO for Not Obese or Overweight but Not Obese.

So, the correct answer = 0.421

8 0
3 years ago
Factored 8x2y3-5= <br> I need the answer
ANTONII [103]

Answer: Reformatting the input :

Changes made to your input should not affect the solution:

(1): "y3" was replaced by "y^3". 1 more similar replacement(s).

STEP

1

:

Equation at the end of step 1

(23x2 • y3) - 5

STEP

2

:

Trying to factor as a Difference of Cubes

2.1 Factoring: 8x2y3-5

Theory : A difference of two perfect cubes, a3 - b3 can be factored into

(a-b) • (a2 +ab +b2)

Proof : (a-b)•(a2+ab+b2) =

a3+a2b+ab2-ba2-b2a-b3 =

a3+(a2b-ba2)+(ab2-b2a)-b3 =

a3+0+0+b3 =

a3+b3

Check : 8 is the cube of 2

Check : 5 is not a cube !!

Ruling : Binomial can not be factored as the difference of two perfect cubes

Final result :

8x2y3 - 5

5 0
3 years ago
Write 2 as a complex number.
balandron [24]

Answer:

2 + 0i

Step-by-step explanation:

Our real number in this scenario would be 2. And since we don't need an imaginary part because we are just converting 2 by itself, we plug in 0 for the imaginary number.

8 0
3 years ago
Is 70thounsand written in standard form or word form?explain
Burka [1]

Answer:

It is a mixture of the two.

Step-by-step explanation:

Standard form would be 70,000

Word form would be seventy thousand

3 0
3 years ago
Simplify the following expression
Ghella [55]
Add like terms
3x^2-12x-7
7 0
3 years ago
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