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SpyIntel [72]
3 years ago
12

This geometric sequence? What is the explicit formula for 8, 4, 2, 1, ...

Mathematics
1 answer:
scoundrel [369]3 years ago
5 0

Answer:

D

Step-by-step explanation:

the first term is 8, the ratio is 1/2 ( 8*1/2 = 4, 4*1/2 = 2, 2*1/2 = 1)

the formula for an explicit geometric formula is :

a_{n} = a_{1} * r^{(n-1)}

plug in your numbers :

a_{n} = 8 * (\frac{1}{2}) ^{(n-1)}

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Darla has four buckets shaped like cylinders she is filling the buckets with water by using a scoop shaped like a cone if the co
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Answer:

12 Scoops

Step-by-step explanation:

Darla has 4 Cylinder Shaped Buckets

Volume of the Cylinders =4*\pi r^2h

The scoop is cone shaped and:

Volume of the Cone Scoop =\frac{1}{3} \pi r^2h

Since the radius and height of the cone scoop and cylindrical buckets are the same,

The number of Cone Scoops it will take to fill the buckets is:

Total Volume of Buckets/Volume of Cone Scoops

=\dfrac{4*\pi r^2h}{\frac{1}{3} \pi r^2h} \\=4 \div \frac{1}{3}\\=12

It will take 12 Scoops to fill the 4 buckets.

5 0
3 years ago
Need help!!!<br><br> which addition matches the problem...
Tom [10]

Answer:

The addition that matches the problem is the first one.

Step-by-step explanation:

The red line goes back 8 so it is a -8 and the blue line goes forward 4 so it is a postive 4.

4 + (-8) = -4

6 0
2 years ago
Carolina y su mamá compraron tres tortas de sabores diferentes para la reunión con sus amigos del colegio. De la torta de naranj
Karo-lina-s [1.5K]

Answer: 2 1/5 partes  de torta

Step-by-step explanation:

Para contestar esta pregunta debemos sumar cada parte de torta:

0.7+9/12+6/8 =

Convertimos las fracciones en decimales, para tener todos los valores expresados de la misma forma. Dividiendo:

9/12=0.75

6/8=0.75

Sumamos :

0.7+0.75+0.75 = 2.2 partes = 2 1/5 partes

En conclusión, Carolina y sus amigos comieron 2 1/5 partes de torta.

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3 years ago
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ASHA 777 [7]
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4 0
3 years ago
Solve<br> Log(x-1)+log(2)=7
Rudiy27

Answer:

x is 6 i believeee if you're solving for x!!

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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