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tiny-mole [99]
4 years ago
5

I’m stuck on this can someone finish the rest plz ?

Mathematics
1 answer:
Keith_Richards [23]4 years ago
4 0

Answer:

-6

Step-by-step explanation:

The equation is:

  • y-y1= m (x-x1)

The first point is:

  • (-6, 24)

Then the equation:

  • y-24= -5 (x-(-6))

<u>-6 replaces ? mark</u>

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Solve for x, and refer to the attached image.
AVprozaik [17]

Answer:

x=8

Step-by-step explanation:

7+5x

so basically what you have to do is take the 7 and subtract from both sides

so like this: 7-7 is 0 so that cancels then 47-7 is 40

then you take 5x and divide 40 by 5

so x=8

hope this helped!

4 0
3 years ago
Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population
postnew [5]

Answer:

We have been given confidence interval 95%, mean 20 , data set 30 and standard deviation 3.

We will use the formula: mean\pm \frac{\sigma}{\sqrt{n}}\cdot (z-score)

Here,mean=20,\sigma=3,n=30,z-score=1.96

Z-score value at 95% confidence interval is 1.96

On substituting the values in the formula to plug the values:

20\pm\frac{3}{\sqrt{30}}\cdot (1.96)

Now, we have a formula for marginal error:z\cdot \frac{\sigma}{\sqrt{n}}

Marginal error means your answer will be within that percentage only.

Say you have 3% marginal means your value will be within 3% real population 95% of the time.

7 0
4 years ago
The prices for a video game at 5 different stores are 39.99, 44.99, 29.99, 35.99, and 31.99. What is the mode(s) of the data
Marianna [84]
No mode. There are no two or more of the same price in the given situation.
8 0
3 years ago
What is the slope intercept of a line perpendicular to the line y=2x+3 with the point (-2,-4)
olchik [2.2K]

Answer:

y = - \frac{1}{2} x - 5

Step-by-step explanation:

the equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

y = 2x + 3 is in this form with slope m = 2

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{2}

y = - \frac{1}{2} x + c ← is the partial equation

To find c substitute (- 2, - 4) into the partial equation

- 4 = 1 + c ⇒ c = - 4 - 1 = - 5

y = - \frac{1}{2} x - 5 ← equation of perpendicular line


4 0
3 years ago
The equation of a line is 5x + 10y = 15. Which if the following points lines on the line? (–3, 0) (–1, 2) (1, –2) (0, 3) The slo
Oxana [17]

Answer:6,6

Step-by-step explanation:

Slope formula

6 0
3 years ago
Read 2 more answers
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