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solve this question with detailed steps

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Please help solve this question with detailed steps.
Each of

the Space Shuttle’s solid rocket motors burns 680,400 kilograms of propellant in 2.5 minutes. How much propellant does each motor burn in 90 seconds?

 kg

 
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solve this

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Help me solve this please!!
style=”color:rgb(0,0,0);”>The path of water from a hose on a fire tugboat can be approximated by the equation y = −0.006x2 + 1.25x + 10, where y is the height, in feet, of the water above the ocean when the water is x feet from the tugboat.
When the water from the hose is 7 feet above the ocean, at what distance from the tugboat is it? Round answer to nearest hundredth. ________ft

 
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Evaluate the expression

Question

How do you solve this! Please include steps! Evaluate the expression,

where  and  indicate addition and subtraction, respectively, using days-of-the-week arithmetic.

3  4

 
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How do you perform the modular arithmetic with this

Question

I need help!! Solve! How do you perform the modular arithmetic with this

information?

3 · 13 (mod 4)

 
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