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3 years ago

15

Write the equation of the line that passes through the points ( 1 , − 6 ) (1,−6) and ( 8 , 9 ) (8,9). Put your answer in fully r

educed point-slope form, unless it is a vertical or horizontal line.

1 answer:

mars1129 [50]3 years ago

4 0

Answer:

10-15. 5-9. 34-56 78-3

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2 years ago

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Solve for the value of x.

77julia77 [94]

Answer:

x=4

Step-by-step explanation:

Given M is the midpoint

We know that midpoint of a line divides the line into two equal parts

Therefore on equating we get

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1 year ago

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Solve the system of equations: y= 3x y= x^2 - 4

OLga [1]

Answer:

$x=-1\\y=-3\\\\x=4\\y=12$

Step-by-step explanation:

Make both equations equal to each other and solve for the variable x:

$y=y\\3x=x^2-4\\x^2-3x-4=0\\$

Find two numbers that when you add them you get -3 and the product of both numbers be -4. These numbers are 1 and -4. Then:

$(x+1)(x-4)=0\\\\x+1=0\\x=-1\\\\x-4=0\\x=4$

Substitute these values into one the original equations and solve for y:

$y=3(-1)\\y=-3\\\\y=3(4)\\y=12$

Therefore, you get that:

$x=-1\\y=-3\\\\x=4\\y=12$

5 0

3 years ago

Given that Cos0=5/13,find a)Tan0,b)Sin0,c)Sec0,d)Co sec0,e)Cot0,

aliina [53]

Step-by-step explanation:

cos 0=5/13. B/H

p=√h2 - b2

= √13 square -5 square

=√169 -25

=√144

=12 Ans

Tan0=p/b =12/5. , sin0=p/h =12/13,. sec0= h/b =13/5 ,. Co sec0 =h/p =13/12 , cot0 =b/p=5/12

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2 years ago

If the correlation coefficient in an ordinary least squares regression = 1.00, then A. all the data points must fall exactly on

Hatshy [7]

Answer: Option A is correct.

Step-by-step explanation:

The correlation coefficient(r) is a statistical measure that computes the strength of the relationship between two variables.

It lies between -1 and 1.

If the correlation coefficient in an ordinary least squares regression = 1.00.

That indicates that there is a perfect relationship between the variables.

i.e. all the data points must fall exactly on a straight line with a positive slope. .

[when r is positive, the slope of the line is positive].

i.e. option A is correct.

8 0

2 years ago