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3 years ago

2,852 rounded to the nearest tenths

Mathematics

1 answer:

galina1969 [7]3 years ago

4 0

Answer:

assuming the comma is meant to be a decimal...

It would be 2.9

Step-by-step explanation:

the place right after the decimal is the tenth place. the 5 rounds up the 8. don't worry about the 2. so the 8 becomes a 9 and you leave off the rest because you are only worrying about the tenths place.

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Please answer the attached question and chose from the provided options.

Marat540 [252]

Answer:

Option A $-\frac{19}{74}+\frac{71}{74}i$

Step-by-step explanation:

we know that

To divide complex numbers, you must multiply by the conjugate.

we have

$\frac{-8+3i}{5+7i}$

To find the conjugate, change the sign between the two terms in the denominator

$\frac{-8+3i}{5+7i}(\frac{5-7i}{5-7i})=\frac{-40+56i+15i-21i^{2}}{25-49i^{2}} \\\\=\frac{-40+71i-21(-1)}{25-49(-1)} \\\\=\frac{-19+71i}{74}\\\\=-\frac{19}{74}+\frac{71}{74}i$

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3 years ago

Help please I don’t understand this

Aleksandr [31]

If you could please make it clear I might be able to help, (that is if you've not already done it)

5 0

2 years ago

HELP!!!!

zimovet [89]

Answer:

$37.55\ m$

Step-by-step explanation:

we know that

The perimeter of the figure is equal to the perimeter of semicircle plus the perimeter of quarter circle plus two times the length of $2\ m$ plus two times the length of $5\ m$

Find the perimeter of semicircle

we know that

The circumference of a semicircle is equal to

$C=\frac{1}{2}\pi D$

we have

$D=10\ m$

substitute

$C=\frac{1}{2}\pi(10)=5 \pi\ m$

Find the perimeter of a quarter of circle

we know that

The circumference of a quarter of circle is equal to

$C=\frac{1}{4}\pi D$

we have

$D=10\ m$

substitute

$C=\frac{1}{4}\pi(10)=2.5 \pi\ m$

Find the perimeter of the figure

$5 \pi\ m+2.5 \pi\ m+2*2\ m+2*5\ m=7.5 \pi\ m+14\ m$

$7.5 \pi+14=37.55\ m$

8 0

2 years ago

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bazaltina [42]

I'm not exactly sure how to answer this question without knowing the number of scholars. However, if you do know the number of scholars, you can divide that number by 9. The quotient will give you the amount of chocolate each scholar can receive.

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3 years ago

Find each difference. show as addition of the oppistie. (-13)-(-17)

vaieri [72.5K]

the answer would be 4.

5 0

2 years ago