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Maurinko [17]
4 years ago
7

How do you solve 100-99+98-97+96-85+.........+4-3+2-1? and show the pattern for it

Mathematics
1 answer:
andreyandreev [35.5K]4 years ago
7 0

Answer:

50

Step-by-step explanation:

100 − 99 + 98 − 97 + 96 − 95 + ... + 4 − 3 + 2 − 1

(100 − 99) + (98 − 97) + (96 − 95) + ... + (4 − 3) + (2 − 1)

1 + 1 + 1 + ... + 1 + 1

50(1)

50

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What is the lateral area of a right prism which has a lateral edge of 4 inches and has a regular pentagon on base with an edge o
sertanlavr [38]

Answer:

240 inches squared

Step-by-step explanation:

A=5*4*12=240

4 0
3 years ago
.Un recipiente cilíndrico de 5cm de radio y 10cm de altura se llena de agua. Si la masa del recipiente lleno es de 2kg, ¿cuál es
Lera25 [3.4K]

Answer:

La masa del recipiente vacío es 1,2146 kg.

Step-by-step explanation:

La densidad se define como la propiedad que tiene la materia, ya sean sólidos, líquidos o gases, para comprimirse en un espacio determinado. En otras palabras, la densidad es una magnitud que permite medir la cantidad de masa que hay en determinado volumen de una sustancia. Entonces, la expresión para el cálculo de la densidad es el cociente entre la masa de un cuerpo y el volumen que ocupa:

densidad= \frac{masa}{volumen}

Entonces la masa puede ser expresada como:

masa= densidad*volumen

En este caso:

  • densidad del agua= 1000 \frac{kg}{m^{3} }
  • volumen del recipiente cilíndrico= π*radio²*altura= π*(5 cm)²* 10 cm= π*(0,05 m)²*0,1 m= 7,854*10⁻⁴ m³

Reemplazando:

masa= 1000 \frac{kg}{m^{3} } * 7,854*10⁻⁴ m³

masa=0.7854 kg

Si la masa del recipiente lleno es de 2 kg, entonces se le resta la masa de agua calculada:

2 kg - 0,7854 kg= 1,2146 kg

Entonces,<u><em> la masa del recipiente vacío es 1,2146 kg.</em></u>

<u><em> </em></u>

<u><em></em></u>

8 0
3 years ago
7y-y=30 show work for it!
Anarel [89]

Answer:

y=5

Step-by-step explanation:

7y-y=6y

30/6 = 6y/6

5 = y

7 0
3 years ago
A homeowner wants to build a circular patio. if the diameter of the patio is 20 feet, what is its area to the nearest whole numb
andreyandreev [35.5K]
We are asked to find the area of patio. It is circular so formula used for area is given by:
A= r^{2}  \pi
Where
r = radius = diameter / 2 = 20 / 2 = 10 feet

A = 10^{2} \pi =100 \pi
When we round this to the nearest whole number:
A =100 \pi = 314.159=314ft^{2}
5 0
4 years ago
(-3,10) and (-3,6) find the slope pleassseeee !!!
-BARSIC- [3]

Answer:

the slope is undeifined

hope this helps :)

5 0
3 years ago
Read 2 more answers
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