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3 years ago

88 POINTS!!!!! Multiply: 1. (y−4)2 2. 5(y+4)2 3. (y+4)2 4. 5(y−4)2

Mathematics

2 answers:

navik [9.2K]3 years ago

7 0

Answer:

Thus # 2 is correct (5 (y + 4))/2

Step-by-step explanation:

Simplify the following:

(5 y (y^2 - 16))/(2 y (y - 4))

(5 y (y^2 - 16))/(2 y (y - 4)) = y/y×(5 (y^2 - 16))/(2 (y - 4)) = (5 (y^2 - 16))/(2 (y - 4)):

(5 (y^2 - 16))/(2 (y - 4))

y^2 - 16 = y^2 - 4^2:

(5 (y^2 - 4^2))/(2 (y - 4))

Factor the difference of two squares. y^2 - 4^2 = (y - 4) (y + 4):

(5 (y - 4) (y + 4))/(2 (y - 4))

Cancel terms. (5 (y - 4) (y + 4))/(2 (y - 4)) = (5 (y + 4))/2:

Answer: (5 (y + 4))/2

omeli [17]3 years ago

7 0

Use the distribution method.

1) 2y - 8

2) 10y + 40

3) 2y + 8

4) 10y - 40

The one in the picture simplified is 5/2y + 10

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If the distance covered by an object in time t is given by s(t)=t^2+5t , where s(t) is in meters and t is in seconds, what is th

alisha [4.7K]

Answer:

E. 44 meters

Step-by-step explanation:

The function that models the distance covered by the object is

$s(t)=t^2+5t$

where s(t) is in meters and t is in seconds.

The distance covered by the object after 1 second is

$s(1)=1^2+5(1)=6m$

The distance covered by the object after 1 second is

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The distance covered between 1 second and 5 seconds is

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3 years ago

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3 years ago

The total weight of 9 bags of potatoes is 36 kilograms each bag weights the same amount what is the weight in grams of each bag

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Answer:

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Step-by-step explanation:

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2 years ago

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two bags contains 10 balls each. Every round you choose with equal probability one of the two bags and pick out a ball. After a

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Answer:

6.10%

Step-by-step explanation:

For every round since we are choosing with equal probability, then the probability of choosing from either of the bags is 1/2

Here, this scenario is only possible when a particular bag has been chosen 10 times and the other bag has been chosen 6 times ( meaning a particular bag has been emptied and for a particular bag to be emptied, all of its content would have been picked)

Now on the 17th trial, an empty bag is chosen

Therefore the required probability will be;

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3 years ago