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3 years ago

4/5 plus what equals 1/2

Mathematics

2 answers:

Assoli18 [71]3 years ago

6 0

Answer:

-0.3

Step-by-step explanation:

4/5 +x= 1/2

0.8+ x= 0.5

-0.8. -0.8

‐--------------------

X= -0.3

VARVARA [1.3K]3 years ago

4 0

Answer: -3/10

Step-by-step explanation: A positive and a negative will subtract.

1. Find the common denominator (8/10)

2. simce 8/10 is greater than 1/2 you need to add a negative to get 8/10 a lower value

3. subtract 5/10 or 1/2 from 8/10 to figure out what gives you the correct answer

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Find the sum of the following infinite geometric series, if it exists. 2 + 6 + 18 + 54 +… Does not exist 23,567 25,982 29,034

Sladkaya [172]

Option A: The sum for the infinite geometric series does not exist

Explanation:

The given series is $2+6+18+54+.......$

We need to determine the sum for the infinite geometric series.

<u>Common ratio:</u>

The common difference for the given infinite series is given by

$r=\frac{6}{2}=3$

Thus, the common difference is $r=3$

<u>Sum of the infinite series:</u>

The sum of the infinite series can be determined using the formula,

$S_{\infty}=\frac{a}{1-r}$ where $0$

Since, the value of r is 3 and the value of r does not lie in the limit $0$

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3 years ago

Complete the point-slope equation of the line through (-1,6)(−1,6)left parenthesis, minus, 1, comma, 6, right parenthesis and (1

velikii [3]

Answer:

$y-6 = -\frac{1}{2} (x+1)$

Step-by-step explanation:

For this case we have two points given (-1,6) and (1,5)

And we want to complete the point slope equation of the line:

$y-6 = m(x-x_o)$

We need to find the slope and we can use the following formula:

$m = \frac{y_2 -y_1}{x_2 -x_1}$

And replacing the info we got:

$m= \frac{5-6}{1-(-1)}=-\frac{1}{2}$

And then the equation would be given by:

$y-6 = -\frac{1}{2} (x- (-1))$

And our final answer would be:

$y-6 = -\frac{1}{2} (x+1)$

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3 years ago