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3 years ago

14

Joe has a cube shaped box that needs to be filled with packaging material If the length of one side 2 feet, then what is the vol

ume of the box?

1 answer:

Vadim26 [7]3 years ago

8 0

Answer: 8 cubic feet

explanation:
given: cubic box of length=2 ft
to find: volume

solution: a= 2 ft
volume= a^3
=2^3
=8 ft^3

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Answer:

The pebble will hit the ground 8.29 second after it is thrown.

Step-by-step explanation:

Given that,

The height of the pebble after t seconds is given by the equation

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When the pebble hit the ground, the height of the pebble will be zero.

So putting h=0 in the given equation.

0 = -16t²+24 t+900

⇒-4(4t²-6t-225)=0

⇒4t²-6t-225=0

Applying quadratic formula $t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ , here a=4, b= -6 and c= -225.

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Since time can not negative.

∴t=8.29 seconds.

The pebble will hit the ground 8.29 second after it is thrown.

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3 years ago

Y=ax^2-bx-12.find the value of x? when a=1,b=2,y=3 by using general formular

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Find the value of x when a=1, b=2, y= 3 by using general formula
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3 years ago

There is a toll plaza every 121/2 miles along a 300 mile road. At each toll plaza drivers must pay $1.25. What does it cost to d

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$\boxed{Total \ cost=\$ 30}$

<h2>Explanation:</h2>

We know some facts:

There is a toll plaza every 12 1/2 miles along a 300 mile road.
At each toll plaza drivers must pay $1.25.

First of all, we have to convert the mixed fraction into improper fraction:

$12\frac{1}{2}=12+\frac{1}{2}=12.5miles$

Next, let's calculate the total number of toll plaza along the way:

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As in every toll plaza, the driver must pay $1.25 then the total cost to drive the whole length of the road is:

$Total \ cost=24(1.25) \\ \\ \boxed{Total \ cost=\$ 30}$

<h2>Learn more:</h2>

About total cost: brainly.com/question/1436308

#LearnWithBrainly

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3 years ago