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BlackZzzverrR [31]

3 years ago

13

For each geometric sequence, find a recursive rule by finding the common ratio by calculating the ratio of consecutive terms. Fi

nd an explicit rule for the sequence by finding each term as the product of the first term and a power of the common ratio. n 1 2 3 4 5 an 50 25 12.5 6.25 3.125 The recursive rule is a1 = and an = an − 1 for n ≥ . The explicit rule is an = ()n − 1.

1 answer:

Monica [59]3 years ago

7 0

50 (1/2)^(n-1) is the equation for the given geometric sequences.

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The perimeter (distance around the shape) of a rectangle is 40 cm. The length is 14 cm.

swat32

Answer:

2(x +14) = 40 (use the distributive property)

2x + 28 = 40 (solve exactly like you did for Fran)

2x = 12

x = 6

8 0

3 years ago

I need to know the answer to this problem. Thanks. I will name Brainliest to the correct answer :)

trapecia [35]

Answer:

422

Step-by-step explanation:

Large rectangle

A = 2(lw+wh+lh)

A = 2(7*10+10*5+7*5)

A = 310

Small rectangle

A = 136

Now the squares that connect both, 4*3

Since you have 1 on each rectangle, the total area for this is 24

add 310 + 136 and substract 24

3 0

2 years ago

2. Write the mixed number -5(4/9) as a fraction in three different ways. Thenwrite the mixed number as a decimal.

emmasim [6.3K]

<em>Fraction #1</em>

$-5\frac{4}{9}$

<em>Fraction #2</em>

$-\frac{49}{9}$

<em>Fraction #3</em>

$-4\frac{13}{9}$

<em>Fraction #4</em>

$-3\frac{22}{9}$

<em>Decimal:</em>

$-5\frac{4}{9}\approx5.4444$

Answer:

$-5\frac{4}{9}$

<em />

$-\frac{49}{9}$

<em />

$-4\frac{13}{9}$

<em>Decimal: 5.4444</em>

3 0

1 year ago

Herman and Jackie are saving money to pay for college. Herman currently has $15,000 and is working hard to save $1000 per month.

Mashutka [201]

Answer:

Part 1) $10\ months$

Part 2) $\$25,000$

Step-by-step explanation:

Let

y ----> the total amount of savings

x ----> the number of months

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

In this problem we have

<em>Herman</em>

The slope is equal to $m=\$1,000\ per\ month$

The y-intercept is $b=\$15,000$

substitute

$y=1,000x+15,000$ ----> equation A

<em>Jackie</em>

The slope is equal to $m=\$1,300\ per\ month$

The y-intercept is $b=\$12,000$

substitute

$y=1,300x+12,000$ ----> equation B

Part 1) In how many months will they have the same amount of savings?

equate equation A and equation B

$1,300x+12,000=1,000x+15,000$

solve for x

$1,300x-1,000x=15,000-12,000$

$300x=3,000$

$x=10\ months$

Part 2) How much will each of them have saved?

substitute the value of x=10 months in any of the equations

equation A

$y=1,000(10)+15,000=\$25,000$

equation B

$y=1,300(10)+12,000=\$25,000$

7 0

3 years ago

Jessie is 6 years older than Todd, and Todd is 2 years younger than Ryan. If Ryan is r years old, which expression shows how old

motikmotik

Ccccccccccccccccccccccccccchhhhhhhhhhhhhhhiiiiiiiiiiiiiiilk

8 0

3 years ago

Read 2 more answers