All categories

3 years ago

Round 12,909 to the nearest ten

Mathematics

2 answers:

AleksandrR [38]3 years ago

5 0

12,909 rounded to the nearest ten is 12,910

DochEvi [55]3 years ago

3 0

12,909 to the nearest TENTHS IS 12,909.0
12,909 to the nearest TENS is 12,910

(I didn't know for sure if you meant TENTHS or TENS so I put both answers.)

Hope this helps you. :) if you are still confused, feel free to private message me.

You might be interested in

Suppose you have a light bulb that emits 50 watts of visible light. (Note: This is not the case for a standard 50-watt light bul

natali 33 [55]

Answer:

0.049168726 light-years

Step-by-step explanation:

The apparent brightness of a star is

$\bf B=\displaystyle\frac{L}{4\pi d^2}$

where

L = luminosity of the star (related to the Sun)

d = distance in ly (light-years)

The luminosity of Alpha Centauri A is 1.519 and its distance is 4.37 ly.

Hence the apparent brightness of Alpha Centauri A is

$\bf B=\displaystyle\frac{1.519}{4\pi (4.37)^2}=0.006329728$

According to the inverse square law for light intensity

$\bf \displaystyle\frac{I_1}{I_2}=\displaystyle\frac{d_2^2}{d_1^2}$

where

$\bf I_1=$ light intensity at distance $\bf d_1$

$\bf I_2=$ light intensity at distance $\bf d_2$

Let $\bf d_2$ be the distance we would have to place the 50-watt bulb, then replacing in the formula

$\bf \displaystyle\frac{0.006329728}{50}=\displaystyle\frac{d_2^2}{(4.37)^2}\Rightarrow\\\\\Rightarrow d_2^2=\displaystyle\frac{0.006329728*(4.37)^2}{50}\Rightarrow d_2^2=0.002417564\Rightarrow\\\\\Rightarrow d_2=\sqrt{0.002417564}=\boxed{0.049168726\;ly}$

Remark: It is worth noticing that Alpha Centauri A, though is the nearest star to the Sun, is not visible to the naked eye.

7 0

3 years ago

A stadium has 49,000 seats. Seats sell for $25 in Section A, $20 in Section B,

Stells [14]

Answer:

A B C

Step-by-step explanation:

Let A,B and C be the number of seats in section A,B and respectively. The situation can be represented by the following system. 1. A+B+C=49,000 2. 25A+20B+50C=1,052,000 and 3. A=B+C

5 0

3 years ago

Which is greater 3 tons or 3,000 pounds

Olenka [21]

3 ton = 6000 lbs
so yes 3 tons is greater

4 0

3 years ago

Read 2 more answers

2×1 1/2 -1 1/2×1 1/2

Ann [662]

Answer:

3/4