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NeX [460]
2 years ago
10

Evaluate 2k + m if k = 11 and m = 5.

Mathematics
2 answers:
Reptile [31]2 years ago
5 0
<span> 2k + m
= 2(11) + 5
= 22 + 5
= 27</span>
Nutka1998 [239]2 years ago
4 0
<span>k = 11
</span>
<span>m = 5
</span>
2k + m = 2*11 + 5 = 22 + 5 = 27
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Factorize 216x^3 + 64y^3
marin [14]

Answer:

8( 3x+2y) ( 9x^2 -6xy +4y^2)

Step-by-step explanation:

216x^3 + 64y^3

Factor out the greatest common factor of 8

8( 27x^3 +8y^3)

Rewriting

8 ( (3x)^3 + (2y)^2))

Recognizing this as the difference of cubes)

a^3 + b^3 = (a+b) (a^2-ab+b^2)

8 ( (3x)^3 + (2y)^2)) = 8( 3x+2y) ( 9x^2 -(3x)(2y) +4y^2)

                                 =8( 3x+2y) ( 9x^2 -6xy +4y^2)

5 0
3 years ago
Suppose the following regression equation was generated from the sample data of 50 cities relating number of cigarette packs sol
frez [133]

Answer:

A) According to the regression equation, regardless of whether or not smoking is allowed in bars, the number of cigarette packs sold per 1000 people decreases by approximately 1424 for each additional dollar of cigarette tax.

Step-by-step explanation:

Given the regression equation:

PACKS i= 57221.431732 − 1423.696906TAXi + 155.441784BARSi + eᵢ.

BARS i= 1 if city i allows smoking in bars

BARSi = 0 if city i does not allow smoking in bars

R2 = 0.351292

P-value = 0.086529

Conlusion:

Simnce p value, 0.0865 is greater than level of significance, 0.05, BARS is not significant. Thus, allowing smoking in bars increase cigarette sales, since the coefficient of BARS is positive.

Correct answer is option A.

According to the regression equation, regardless of whether or not smoking is allowed in bars, the number of cigarette packs sold per 1000 people decreases by approximately 1424 for each additional dollar of cigarette tax.

4 0
3 years ago
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8 0
3 years ago
Factors of 12 simplify 3/4-1/3+1/2​
Ymorist [56]

Answer: 11/12

Step-by-step explanation: hope this helps!

7 0
2 years ago
Read 2 more answers
heba ate 1/12 of a box of cereal now the box is 3/4 full what fraction of a full box was there before heba ate it
abruzzese [7]

Now box is 3/4 full


3/4 = 3/4*1


3/4 = 3/4 * 3/3 = 9/12


Box is 9/12 full after heba ate 1/12 of a box of cereal


Initial fraction will be 9/12+1/12


=10/12= 5/6

7 0
3 years ago
Read 2 more answers
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