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2 years ago

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1 answer:

alexira [117]2 years ago

3 0

Answer:

D

Step-by-step explanation:

It matches the most

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You fly in a helicopter for 20 minutes that goes at a speed of 240 km per hour. How far did you go?

kondaur [170]

80KM IN THOSE 20 MINUTES

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3 years ago

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A display case for the artifact is in the shape of a cube. Each side of the display case is three times longer than the width ww

Katena32 [7]

A cube is a 3d object bounded by 6 square faces.

Each side of the display case is 3 times longer than the width of the artifact.

width of the artifact = w
side of the cube = 3w

<span>a. Write an expression for the volume of the case.
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Volume = (3w)</span>³

<span>Volume = 27w</span>³<span>

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3 years ago

Pls help ASAP it’s confusing and I’m short on time

Korolek [52]

Answer:

6(3x + 1/2)

9(2x + 1/3)

2(9x + 5) - 7

Step-by-step explanation:

6(3x + 1/2)= 18x + 3 ✅

9(2x + 1/3)= 18x + 3 ✅

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3 years ago

Timothy bought 10 cookies for $5.00.

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2 years ago

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The profile of the cables on a suspension bridge may be modeled by a parabola. The central span of a bridge is 1270 ft long and

deff fn [24]

Answer:

Step-by-step explanation:

Given

span of bridge $L=1270\ ft$

height of span $h=157\ ft$

Equation of Parabola

$y=0.00039x^2$

$|x|$ i.e.

$-635$

$\frac{dy}{dx}=2\times 0.00039$

length of Arc $=\int_{a}^{b}\sqrt{1+(\frac{dy}{dx})^2}$

$=\int_{-635}^{635}\sqrt{1+(\frac{dy}{dx})^2}$

$=\int_{-635}^{635}\sqrt{1+(0.00078x)^2}$

$=2\times \int_{0}^{635}\sqrt{1+(0.00078x)^2}$

$=2\times (660.08)$

$=1320.16\ ft$

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3 years ago