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3 years ago

The product of a number and six is eigth

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

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find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be

olasank [31]

Hello,

$u_{1} =4\\
 u_{2} =4*q\\
 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
if\ q=2 \ then\ \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\



$

Answer B (but see the problem)

7 0

3 years ago

Read 2 more answers

Gradient from 2 - 1/2y = 0

kirill115 [55]

Given :

2 - 1/2y = 0

To find :-

The gradient form .

Solution :-

The gradient form/ slope intercept form

y = mx + c ,

On converting ,

2 - 1/2y = 0
1/2y = 2
y = 2*2
y = 4
y = 0x + 4

4 0

2 years ago

Which expression is equivalent to the expression below?

Mama L [17]

Answer:

5r + 2p + 6

Step-by-step explanation:

= 4r + 9 + r + 2p - 3

= 4r + r + 2p + 9 - 3

= 5r + 2p + 6

4 0

3 years ago

Solve the right triangle. Round your answers to the nearest tenth. Help!

maks197457 [2]

answer: 1/2 bh

Step-by-step explanation

3 0

3 years ago

Monica has 2 gallons of milk to make milkshakes. Each milkshake contains 1 cup of milk. There are 128 ounces in 1 gallon and 8 o

OlgaM077 [116]

Answer: 32 cups of milk

Step-by-step explanation:

The first thing to do is to convert the gallons of milk to milkshakes so that you are able to convert easier to cups.

There are 128 ounces in 1 gallon and Monica has 2 gallons. The amount of milk Monica has in ounces is:

= 128 * 2

= 256 ounces

Each cup is capable of holding 8 ounces and there are 256 ounces available so the number of cups of milk is:

= 256 / 8

= 32 cups of milk

3 0

3 years ago