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adoni [48]
3 years ago
6

What is the answer to this ?

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
8 0

Answer: i think its d


Step-by-step explanation:


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Given the equation y − 3 = one half(x + 6) in point-slope form, identify the equation of the same line in standard form.
Schach [20]

Answer:

A. x-2y=-12

Step-by-step explanation:

We have been given an equation of a line in point-slope form. We are asked to write our given equation in standard form.

y-3=\frac{1}{2}(x+6)

Since we know that standard form of equation is: ax+by=c, where, a, b and c are constants.

Let us multiply both sides of our given equation by 2.

(y-3)*2=2*\frac{1}{2}(x+6)

2y-6=x+6

Let us add 6 to both sides of our equation.

2y-6+6=x+6+6

2y=x+12

Let us subtract x from both sides of our equation.

2y-x=x-x+12

2y-x=12

Multiply both sides of our equation by -1.

-2y+x=-12

Rearranging our equation we will get,

x-2y=-12

Therefore, the standard form of our given equation is x-2y=-12 and option A is the correct choice.

4 0
2 years ago
What is the constant of variation,k, of the direct variation,y=kx,through (5,8)
grigory [225]

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form \frac{y}{x}=k or y=kx

where

k is the constant of variation

in this problem we have

the point (5,8)

so

x=5\\y=8

substitute

\frac{y}{x}=k

\frac{8}{5}=k

therefore

<u>the answer is</u>

k=\frac{8}{5}

8 0
3 years ago
Read 2 more answers
A radio station claims that the amount of advertising per hour of broadcast time has an average of 13 minutes and a standard dev
zimovet [89]

Answer:

Z = 3.33

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

\mu = 13, \sigma = 1.2

You listen to the radio station for 1​ hour, at a randomly selected​ time, and carefully observe that the amount of advertising time is equal to 17 minutes. Calculate the​ z-score for this amount of advertising time.

We have to find Z when X = 17. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{17 - 13}{1.2}

Z = 3.33

5 0
2 years ago
Solve algebraically the simultaneous equations
Bess [88]

Answer:waffle

Step-by-step explanation:

Basically ill tell you the answer if it says it helped you

8 0
2 years ago
(-9) - 9n= (-45) please helpppp!
kozerog [31]

Answer: n=4

Step-by-step explanation:

\left(-9\right)-9n=\left(-45\right)

add 9 to both sides

-9-9n+9=-45+9

-9n=-36

divide both sides by -9

n=4

Brainliest please

8 0
3 years ago
Read 2 more answers
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