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scZoUnD [109]
4 years ago
8

What is the product of the polynomials below? (7x+7)(x+2)

Mathematics
2 answers:
8_murik_8 [283]4 years ago
6 0
<span>(7x+7)(x+2)
= 7x^2 + 7x + 14x + 14
= 7x^2 +21x + 14

answer
</span>7x^2 +21x + 14
Nutka1998 [239]4 years ago
6 0

Answer:

7x^2 +21x + 14

Step-by-step explanation:

Correct answer for Apex

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A pool is filling with water at a constant rate.after 10 minuets the height of the water level is 6 inches.after 15 minuets the
Alex73 [517]
The answer would be 18 minutes.

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cross multiply

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then divide

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5 0
3 years ago
A cup of coffee with temperature 155degreesF is placed in a freezer with temperature 0degreesF. After 5 ​minutes, the temperatur
Leviafan [203]

Answer:

45.50° F

Step-by-step explanation:

As per Newton's law,

T(t) = T_{s}+(T_{0} + T_{s})e^{-kt}

When T(t) is the final temperature

T_{s} = Temperature of surrounding

T_{0} = Initial temperature

t =duration of cooling

k = constant

103=0+(155-0)e^{-k\times 5}

103=155e^{-5k}

Now take natural log on both the sides

ln(103)=ln(155e^{-5k})

ln(103)=ln(155)+ln(e^{-5k})

ln(103)=ln(155)=-5k

4.6347 - 5.0434 = -5k

k=\frac{0.40872}{5}

k = 0.0817

T(t)=0+(155-0)e^{(0.0817\times 15)}

   = 155e^{-1.226}

   = 155 (02935)

  = 45.49 ≈ 45.50° F

8 0
4 years ago
What does 4+9n mean
vlabodo [156]
You have to add 4 and 9 then drop your variable
4 0
3 years ago
The equation of line a is y=3/4x-3 If line b runs parallel to line a and passes
katen-ka-za [31]

Answer:

y = -4/3 x - 1/3

Step-by-step explanation:

y = -4/3 x + b

5 = -4/3 (-4) + b

15 = 16 + 3b

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5 0
3 years ago
it takes 29 minutes to ride your skateboard to school, give or take 4 minutes. what are the possible times (t) it takes you to g
lorasvet [3.4K]
29-4 = 25
29+4 = 33
So, from 25 to 33 minutes.
5 0
3 years ago
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