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lorasvet [3.4K]
2 years ago
10

Equation

0%3D%20%20-%201" id="TexFormula1" title="(z + \frac{6}{7} ) + \frac{2}{14} = - 1" alt="(z + \frac{6}{7} ) + \frac{2}{14} = - 1" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
ddd [48]2 years ago
5 0

Given:

The equation is

\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1

To find:

The solution of the given equation.

Solution:

We have,

\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1

It can be written as

\left(z+\dfrac{6}{7}\right)+\dfrac{1}{7}=-1

\left(z+\dfrac{6}{7}\right)=-1-\dfrac{1}{7}

Multiply both sides by 7.

7z+6=-7-1

7z+6=-8

7z=-8-6

7z=-14

Divide both sides by 7.

z=\dfrac{-14}{7}

z=-2

Therefore, the value of z is -2.

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rewona [7]
20 I think good luck
4 0
3 years ago
What is an equation of the line that is perpendicular to y + 1 = -3(x - 5) and passes through the point (4, -6)?
IrinaK [193]

Answer:

Option A.

Step-by-step explanation:

y + 1 = -3x + 15

y = -3x + 14

A line perpendicular would have a slope of 1/3.

y = 1/3x + c

-6 = 1/3 * 4 + c

4/3 + c = -6

c = -18/3 - 4/3

c = -22/3

So, we have y = 1/3x - 22/3.

y + 6 = 1/3(x - 4)

y + 6 = 1/3x - 4/3

y = 1/3x - 4/3 - 18/3

y = 1/3x - 22/3

So, the correct answer is Option A.

Hope this helps!

3 0
2 years ago
How to find the answer
Lina20 [59]
I think that the correct one is the D.
8 0
3 years ago
Evaluate the expression when a=4, b=−5, and c=−8. (−b)+c=
pshichka [43]

Answer:

-3

Step-by-step explanation:

( -  - 5) =  + 5 \\  + ( - 8) =  - 8 \\ 5 - 8 =  - 3

5 0
3 years ago
Read 2 more answers
Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. use the
mamaluj [8]

A binomial distribution is an experiment where there are two outcomes; Success and failure. For instance, you are given n = 128 and p = 0.27. The formula for the variance of a binomial distribution is n*p(1 – p) or n*p*q*. They are equivalent because q = 1- p. We will use the first equation.

 

Variance = n*p*(1 – p)

Variance = 128*0.27*(1 – 0.27)

Variance = 25.23

 

To get the standard deviation, find the square root of the variance.

Standard deviation = sqrt (Variance)

Standard deviation = sqrt (25.23)

<span>Standard deviation = 5.02</span>

7 0
3 years ago
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