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3 years ago

What is 4.12 rounded to nearest tenth?

2 answers:

8 0

when rounding to the nearest tenth, we have to see the digit in the hundredths place, if the digit is equal to or greater than 5, then we add 0.1, if the digit is less than 5 then there's no change to the digit in the tenths place

tenths place is the first number to the right of the decimal point

hundredths place is the number to the right of the tenths place

in the given number 4.12

digit in the hundredths place is 2, its less than 5 so there's no change to the digit in the tenths place

so 4.12 rounded to the nearest tenth is - 4.1

Dvinal [7]3 years ago

5 0

You round to the first decimal place so you get 4.1

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Step-by-step explanation:

We are given the following equation that models the baseball's parabolic path:

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Where:

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$V_{o}=64 ft/s$ is the initial height

With this information the equation is rewritten as:

$s=16t^{2}+(64)t$ (2)

Now, we have to find $t$ , and this will be posible with the following formula:

$V=V_{o}-gt$ (3)

Where:

$V=0 ft/s$ is the final velocity of the ball at the point where its height is the maximum

$g=32 ft/s^{2}$ is the acceleration due gravity

Isolating $t$ :

$t=\frac{V_{o}}{g}$ (4)

$t=\frac{64 ft/s}{32 ft/s^{2}}$ (5)

$t=2 s$ (6)

Substituting (6) in (2):

$s=16 ft/s^{2}(2 s)^{2}+(64 ft/s)(2 s)$ (7)

Finally:

$s=64 ft$

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Step-by-step explanation:

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