Ask question

Ask question

All categories

4 years ago

6

The number 0.7777 repeats forever therefore it is irrational true or false?

1 answer:

DochEvi [55]4 years ago

4 0

Answer:

It's false, this number is a rational number.

Step-by-step explanation:

It's false, the kind of decimal where the same digits repeats forever are known as periodic decimals and they can be represented with fractions therefore they are a part of the rational numbers. To represent this number in a fraction form we need to first identify the part that repeats, in this case it's 7, since it's only one number we can insert it in the numerator and the denominator will have a 9, if it were two numbers the denominator would have a 99 and so on. So in this case:

7/9 = 0.7777...

You might be interested in

Kim is drawing a map of the different schools in her school district. She knows that her middle school is 10.6 miles away from t

Natalija [7]

5.5 inches away on the map.

7 0

3 years ago

castortr0y [4]

Answer:

Step-by-step explanation:

6 - 2x = 5x - 9x + 10 {add the like terms}

6 - 2x = - 4x + 10 {add (-6) to both side}

6 - 2x - 6 = - 4x + 10 - 6

-2x = - 4x + 4 {add 4x to both sides}

-2x + 4x = -4x + 4 + 4x

2x = 4 {divide both sides by 2}

2x/2x = 4/2

x = 2

3 0

3 years ago

1/4r-1/16r+1/2r=1/2r solve the equation

almond37 [142]

solve for by simplifying both sides of the equation, then isolation the variable.

r = 0

:)))

4 0

3 years ago

Read 2 more answers

A certain television is advertised as a 90-inch TV (the diagonal length). If the

Simora [160]

Answer: 64.3

Step-by-step explanation:

4 0

3 years ago

The graph of f(x) = (0.5) is replaced by the graph of g(x) = (0.5)* - k. If g(x) is obtained by shifting f(x) down by 3 units, t

Ghella [55]

Answer:

$k = 3$

Step-by-step explanation:

Given

$f(x) = 0.5x$

$g(x) = 0.5x - k$

Required

$Find\ k$

Initial expression of f(x) is $f(x) = 0.5x$

From the question; we understand that f(x) was shifted down by 3 units;

This implies that

$New\ f(x) = 0.5x - 3$

Also from the question; we understand that this new f(x) is equivalent to g(x);

In other words;

$New\ f(x) = g(x)$

Substitute $New\ f(x) = 0.5x - 3$ and $g(x) = 0.5x - k$

This gives

$0.5x - 3 = 0.5x - k$

<em />

Subtract 0.5x to both sides

$0.5x - 3 - 0.5x = 0.5x - k - 0.5x$

Rearrange

$0.5x - 0.5x - 3 = 0.5x - 0.5x- k$

$-3 = -k$

Multiply both sides by -1

$-3 * -1 = -k *-1$

$3 = k$

$k = 3$

5 0

3 years ago