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marusya05 [52]
3 years ago
8

which of the following is a polynomial expression a. 2^x + x + 3 b. x^2 + 2x + 7 or c. 1/x + 1/x2 + 1/x3 ( btw the ^2 means it’s

squared ) please answer
Mathematics
1 answer:
NeTakaya3 years ago
5 0

(b)

A polynomial has the form

a_{0}x^{n} ± a_{1}x^{n-1} + ....

the only expression fitting this description is : x² + 2x + 7


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Will mark as brainliest (must show work)
Sever21 [200]

Answer:

46

Step-by-step explanation:

With those problems if you are not given a picture is good we draw one.

Because an angle bisector forms 2 congruent angles and because is given that < XVY ≅ < YVW  then

m < XVY = m < YVW

      2x+7 = x+15 , subtract x and 7 from both sides to isolate the like terms

      2x-x = 15-7, combine like terms

           x = 8

From the picture and the given we see that

m < XVW = m < XVY + m < YVW

m < XVW = 2x+7 + x+15 , combine like terms

m < XVW = 3x + 22, substitute x for 8

m < XVW = 3*8 + 22

m < XVW = 46

Check our work:

m < XVY =  2x+7  = 2*8 +7 = 16 +7 = 23

m < YVW =  x+15 = 8 +15 = 23

m < XVW = m < XVY + m < YVW = 23+23 =46

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She must have planned No later than 2014
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If a florist uses 100 roses to make 5 identical flower arrangements, how many roses would the florist use to create 4 identical
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6 0
2 years ago
Bethany is paid time-and-a-half for each hour she works above her normal 40 hours each week. Last week, Bethany worked 44 hours
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Answer : $18.75

Bethany is paid time-and-a-half for each hour she works above her normal 40 hours each week. Last week, Bethany worked 44 hours and her gross pay was $575.

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Let x be the amount earned for 1 hour for regular 40 hours

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40 (amount earned for normal hours ) + 4(amount for extra hours ) = gross pay

40x + 4(1.5x) = 575

40x + 6x = 575

46 x = 575

Now divide both sides by 46

x = 12.5

1.5x is the amount earned for extra hours

1.5 * 12.5 = 18.75

Bethany earn for each hour of overtime she worked is $18.75


8 0
3 years ago
Compare cookies and drinks. cookies:24 drinks:8
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If you want this simplified then

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