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3 years ago

Prove for any value of y the value of expression y^4−(y^2−9)(y^2+9) is divisible by 9.

Mathematics

1 answer:

Mariana [72]3 years ago

4 0

Answer:

Step-by-step explanation:

y4−

(y2−9)(y2+9)

Distribute:

=y4+

−1

y4+9

Combine Like Terms:

=y4+

−1

y4+9

=(y4+

−1

y4)+(9)

y4+9

Answer:

y4+9

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The value of a new car in 2015 was 40,000 dollar. It depreciates each year by 7%. How much will the car be worth in 2026?

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Step-by-step explanation:

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2 years ago

Cylinder capacity 4.25 L, cylinder diameter of 13 what is the height of the cylinder?

Musya8 [376]

Answer:

Step-by-step explanation:

Capacity of cylinder =4.25L

So volume of the cylinder=4250

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2 years ago

3445÷13 what is this in long division

padilas [110]

3445 divided by 13 is 265.

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3 years ago

Read 2 more answers

Need answer ASAP pls

jarptica [38.1K]

Answer:

$Distance(PQ)=\sqrt{113}$

Step-by-step explanation:

In coordinate geometry distance between the two points can be find by using the distance formula:

For two points :

$(x_1,y_1)\\and \\(x_2,y_2)$

$Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

For points: P(3,-1) and Q(-5,6)

Distance (PQ):

$=\sqrt{(-5-3)^2+(6-(-1))^2} \\\\=\sqrt{(-8)^2+(6+1)^2}\\\\ =\sqrt{(-8)^2+(7)^2} \\\\=\sqrt{64+49}\\\\Distance(PQ) =\sqrt{113}\\\\$

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3 years ago