2 years ago

A sandbox is 2.5 m wide and 3.4 m long.

Mathematics

1 answer:

aliya0001 [1]2 years ago

5 0

Answer:

2.55 M of Sand

Step-by-step explanation:

The question is asking how much sand will it take to fill the sandbox, and since it is a 3-d shape you know you have to use 'Volume'. You find volume using L × W × H. So you substitute your variables into the equation and you get your answer. Hope that help!

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Given the function f(x) = −5x2 − x + 20, find f(3).

lana66690 [7]

f(x) = -5x^2 - x + 20;

f(3) = -5*3^2 - 3 + 20 = -5*9 - 3 + 20 = -45 - 3 + 20 = -28;

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1 year ago

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Lupe can ride her bike at a rate of 20 mph when there is no wind. On one particular day, she rode 2 miles against the wind and n

lana [24]

Let wind speed = x mph

when she rode 2 miles against the wind we have:-
speed = distance / time so
20 - x = 2 / t -------(1) where t is the time she took.

when riding with the wind we have

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t = 5/40 = 1/8 hr

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2 years ago

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In circle M, diameters JL and HK each measure 16 centimeters.

sashaice [31]

Answer:

3.5 cm

Step-by-step explanation:

Length of an arc is a "part" of the circumference of a circle.

The circumference is the perimeter of the circle. Formula is:

$C=\pi d$