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atroni [7]
3 years ago
9

What is 33% of 420 round to the nearest hundredth

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

138.6

Step-by-step explanation:

Alinara [238K]3 years ago
6 0

Answer: 138.6

Step-by-step explanation:

33% can also be written as 0.33

Multiply 0.33 by 420 to get 138.6

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3 years ago
A projectile is launched from the ground at an angle of theta above the horizontal with an initial speed of v in​ ft/s. The rang
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Answer:

\theta=24.4^\circ

Step-by-step explanation:

The formula you wrote has the fraction the other way around. You can find that the range​ of a projectile is in reality approximated by the equation x=\frac{v^2}{g} sin(2\theta)=\frac{v^2}{32ft/s^2} sin(2\theta), where we will use ft for distances.

From the given equation we have then \frac{x32ft/s^2}{v^2} =sin(2\theta), which means \theta=\frac{Arcsin(\frac{x32ft/s^2}{v^2})}{2} since the arcsin is the inverse function of the sin.

Since we have x = 170 ft and  v = 85 ft/s, we can substitute these values from the equation written, and we will have \theta=\frac{Arcsin(\frac{(170ft)(32ft/s^2)}{(85ft/s)^2})}{2}, and from now on we have just to use a calculator, obtaining \theta=\frac{Arcsin(0.75294117647)}{2}=\frac{48.84579804^\circ}{2}=24.4^\circ

3 0
3 years ago
on each of 3 days, Derrick rode 6.45 mules to school,15 meters to the library, and then 500 meters back home.how many kilometers
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If 6.45 is supposed to be miles
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but that is only if the 6.45 is in miles
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3 years ago
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Elis [28]

Answer:

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Step-by-step explanation:

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The unit rate is 2.5 meters in 1 second 

40/16=2.5 
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3 years ago
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