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2 years ago

Estimate 5171 / 17 by first rounding each number so that it has only 1 nonzero digit.

Mathematics

2 answers:

padilas [110]2 years ago

8 0

Answer:

250

Step-by-step explanation:

5171/17

Estimate: 5000/20 = 500/2 = 250

german2 years ago

7 0

Answer:

250

Step-by-step explanation:

round first to 5000/20 = 250

please give a brainiest

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Find the distance traveled at the given speed and time using d=rt and r= 32mph and t= 4.5hr.

Goshia [24]

Hello!

As you can see, our distance is the product of our rate and time. Let's multiply below.

32(4.5)=144

Therefore, you would have traveled 144 miles.

I hope this helps!

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Marat540 [252]

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Please help with this question!! I need serious help!!

asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

$A=\pi r^2$

The formula of a circumference of a circle:

$C=2\pi r$

The area multipled by 16:

$16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2$

The radius has increased fourfold, therefore:

$C'=2\pi(4r)=4(2\pi r)=4C$

The circumference is multipled by 4.

You can calculate the area and check the circumference:

$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

Calculate the radius:

$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

Calculate the circumference of both circles:

$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

$r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in$

$\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C$

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3 years ago

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ANEK [815]

Answer:

Damian here! (ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

Step-by-step explanation:

-5/9 is the answer

-5/9 > -7/12

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3 years ago

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astraxan [27]

Answer:

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Step-by-step explanation:

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3 years ago