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IceJOKER [234]
2 years ago
14

Please solve:Common Factors Of Polynomials

Mathematics
2 answers:
EleoNora [17]2 years ago
8 0

The answer is D on e2020

GenaCL600 [577]2 years ago
4 0
1- 8x^2+12x \\  =4x*2x+4x*3 \\ =4x(2x+3) \\ =A

2- 20mn-30m \\ =10m*2n-10m*3 \\  =10m(2n-3) \\ =B

3- 15x^3-12x \\ =3x*5x^2-3x*4 \\ =3x(5x^2-4) \\ =B

4- 12x^2y-3x^2y^2-15xy \\ =3xy*4x-3xy*xy-3xy*5 \\ =3xy(4x-xy-5) \\ =C

5- 24w^2x^6-8wx^3 \\=8wx^3*3wx^3-8wx^3*1 \\ =8wx^3(3wx^3-1) \\ =D
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2x + 5y - 28<br> -2x - 5y = -18<br><br> Elimination
lidiya [134]

Answer:

no solution I believe

Step-by-step explanation:

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3 years ago
Mrs Dang drove her daughter to school at the average speed of 45 miles per hour. She returned home by the same route at the aver
drek231 [11]

Answer: Time it took her to get to the school is 0.6 hours

The distance of the school from their home is 27 miles

Step-by-step explanation:

Mrs Dang drove her daughter to school at the average speed of 45 miles per hour.

Let x miles = distance from the school to their home.

Distance = speed × time

Time = distance / speed

Time used in going to school will be

x/45

She returned home by the same route. This means that distance back home is also x miles.

She returned at an average speed of 30 miles per hour.

Time used in returning home from school will be x/30

x/45

If the trip took one half hour, then the time spent in going to school and the time spent in returning is 1 1/2 hours = 1.5 hours. Therefore

x/30 + x/45 = 1.5

(15x + 10x) /450 = 1.5

15x + 10x = 450 × 1.5 = 675

25x = 675

x = 675/25 = 27

Time it took her to get to the school will be x/45

= 27/45 = 0.6 hours

8 0
3 years ago
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