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2 years ago

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Eric bought a canoe for $400. The sales tax was 5.2%. What was his total cost?

2 answers:

N76 [4]2 years ago

8 0

Answer:

420.8

Step-by-step explanation:

Tax = SalesAmount * TaxPercent

Tax = 400*0.052

Tax = 20.8 dollars

Total cost is 400+20.8

420.8

irinina [24]2 years ago

4 0

Answer:

420.8

Step-by-step explanation:

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1. Find the difference between the areas.

<u>Area of the small rectangle</u>: $(x+2)(x+7)=x^2+7x+2x+14=x^2+9x+14$

<u>Area of the big rectangle</u>: $(x+9)(x+11)=x^2+11x+9x+99=x^2+20x+99$

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2.

You can solve this question just by looking at the graph.

a) The height is 4 meters.

$f(d)=h=-2d^2+7d+4$

To find the height of the bleachers, we should consider the moment before the shoot, when the distance is equal to 0.

$f(0)=h=-2(0)^2+7(0)+4$

$h=4$

The height is 4 meters.

b) 9 meters.

For $d=1$

$f(1)=h=-2(1)^2+7(1)+4$

$f(1)=h=-2+7+4$

$h=9$

b) The ball travels 4 meters.

But to calculate it, it is when $h=0$

$0=-2d^2+7d+4$

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$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

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In this question, we have to find the area of the cylinder and the sphere.

From the information given, we have

a = 5mm and d = 5mm, therefore the radius is 2.5 mm.

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$V=\pi (2.5)^2 \cdot 5$

$V=31.25 \pi$

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