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Sergeeva-Olga [200]
3 years ago
12

a rectangular prism with a volume of 3 cubic units is filled with cubes with side lengths of 1/4 unit.how many 1/4 unit cubes do

es it take to fill the prism
Mathematics
1 answer:
Anvisha [2.4K]3 years ago
8 0

Answer:

12

Step-by-step explanation:

3 divided by 1/4 = 3 x 4 = 12

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A balloon is rising at a constant speed of 5 ftys. A boy is cycling along a straight road at a speed of 15 ftys. When he passes
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Answer:

  13 ft/s

Step-by-step explanation:

t seconds after the boy passes under the balloon the distance between them is ...

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The rate of change of d with respect to t is ...

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At t=3, this derivative evaluates to ...

  dd/dt = (50·3 +45)/√(90+54+81) = 195/15 = 13

The distance between the boy and the balloon is increasing at the rate of 13 ft per second.

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The boy is moving horizontally at 15 ft/s, so his position relative to the spot under the balloon is 15t feet after t seconds.

The balloon starts at 45 feet above the boy and is moving upward at 5 ft/s, so its vertical distance from the spot under the balloon is 45+5t feet after t seconds.

The straight-line distance between the boy and the balloon is found as the hypotenuse of a right triangle with legs 15t and (45+5t). Using the Pythagorean theorem, that distance is ...

  d = √((15t)² + (45+5t)²)

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6 0
2 years ago
The perimeter of a square picture frame is 5.4 inches . What is the length of one side? Write and equation and slove.
Anarel [89]

Answer:

s = 1.35 (See explanation!)

Step-by-step explanation:

To write an equation, you need to know that all four sides of a square are equal. Since each side is equal, it can be represented by the same variable or value. I'll use s for the variable:

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Note: the 4s is the total perimeter (4 * side)

Now, solve:

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Divide by four to isolate the s:

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