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2 years ago

Find the sum of the finite geometric series. 4 20 100 ... 312,500 the sum of the geometric series is .

1 answer:

5 0

What is the 9th term of the geometric sequence 4, -20, 100, ...
First term, a = 4 
common ratio, r = –20 / 4 = –5 
..... ..... ..... ..... = 100 / –20 = –5 
9th term = 4 ( –5 ) ^ ( 9 - 1 ) 
..... ...... = 4 ( –5 ) ^ 8 
..... ...... = 4 ( 390,625 ) 
..... ...... = 1,562,500

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3 = t + 11.5 - t

Ray Of Light [21]

Answer:

There are no solutions.

Step-by-step explanation:

3=t+11.5-t

3=11.5 (does not work)

8 0

2 years ago

Akio buys scissors for $3.79, tape for $2.57, and pens for $5.80. The sales tax is 6.25%.

Ganezh [65]

Answer:

$0.76

Step-by-step explanation:

3.79+2.57+5.8=12.16

12.16 x 0.0625=0.76

To solve this, you have to add all the prices together and then convert the percentage into a number so that you can multiply it by the total sales. You end up with 0.76 cents as the taxes for Akio's Purchase.You convert the percentage by moving it backward 2 decimal places.

6 0

2 years ago

Read 2 more answers

Find the circumference of each circle. Use 3.14 or 22/7 for T. Round to the

Ludmilka [50]

Answer:

4. Circumference = diameter × π

8× 3. 14= 25. 12 ~25. 1

5. 13×3. 14= 40. 82 ~40. 8

6. Diameter= radius ×2

3. 5×2=7

Diameter = 7

7× 3. 14= 21. 98 ~22

6 0

2 years ago

Application

user100 [1]

He needs to run with approximately 6429 for a distance of 9 km

<h3>How to determine the number of strides?</h3>

The given parameters are:

Length of stride = 1.4 m

Distance for marathon = 9 km

The number of strides needed is then calculated as:

Number of stride = Distance for marathon/Length of stride

Substitute the known values in the above equation

Number of stride = 9km/1.4m

Convert km to m

Number of stride = 9000m/1.4m

Evaluate the quotient

Number of stride = 6428.57143

Approximate the estimate

Number of stride = 6429

Hence, he needs to run with approximately 6429 for a distance of 9 km