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Verizon [17]
3 years ago
13

What is 263874 rounded to the nearest 10000

Mathematics
1 answer:
Archy [21]3 years ago
6 0
30000 is the answer as it is ajove 20000 in comparison to rounding down
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The answer is the first one
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Please help !! Geometry homework. Will mark brainliest answer !
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For this case we have:

By trigonometric property we have:

Sin\alpha=\frac{opposite leg}{hypotenuse}

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Calcular cuántos números impares hay entre 20 y 50 y calcular su suma​
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Answer:

<em>La suma de los impares entre 20 y 50 da 875</em>

Step-by-step explanation:

<u>Suma de Progresiones Artiméticas </u>

Una progresión aritmética es aquella en la cual, cada término se obtiene como el anterior mas una cantidad fija llamada diferencia común. El término general de una progresión aritmética es

a_n=a_1+(n-1)r

Donde a_1 es el primer término, n el número de términos y r la diferencia común o radio. La suma de los primeros n términos se calcula como:

\displaystyle S_n=n\frac{a_1+a_n}{2}

En nuestro ejercicio, se deben sumar los números impares entre 20 y 50, se forma la progresión

21, 23, 25, 27, ....49

Sabemos que a_1=21,\ a_n=49,\ r=2

Primero averiguamos cuántos términos son, despejando n del término general

\displaystyle n=\frac{a_n-a_1}{r}+1

\displaystyle n=\frac{49-21}{2}+1

\displaystyle n=25

La progresión tiene 25 términos

Ahora la suma es

\displaystyle S_{25}=25\frac{21+49}{2}

\displaystyle S_{25}=25\frac{70}{2}

S_{25}=875

La suma de los impares entre 20 y 50 da 875

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Answer:

31.4 in

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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