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3 years ago

10

A line passes through the point (-3, -3) and has a slope of 1/2

1 answer:

Ierofanga [76]3 years ago

6 0

Answer:

y = -1/2 x - 3/2

Step-by-step explanation:

Substitute the points for y and x and solve :)

Lemme know if you need more help or if you want me to further explain

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What's the distance between 7,8 and 3,2

PolarNik [594]

The anwser is 7.2
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3 years ago

For what value of k are the roots of the quadratic equation kx (x-2)+6=0 equal?

ser-zykov [4K]

Answer:

$\boxed{\sf k=6}$

Step-by-step explanation:

$\sf kx (x-2)+6=0$

Expand brackets.

$\sf kx^2 -2kx+6=0$

This is in quadratic form.

$\sf ax^2 +bx+c=0$

Since this is for equal roots:

$\sf b^2 -4ac=0$

$\sf a=k\\b=-2k\\c=6$

$\sf (-2k)^2 -4(k)(6)=0$

$\sf 4k^2-24k=0$

$\sf 4k(k-6)=0$

$\sf 4k=0\\k=0$

$\sf k-6=0\\k=6$

Plug k as 0 to check.

$\sf \sf 0x^2 -2(0)x+6=0\\6=0$

False.

So that means k must equal 6.

3 0

3 years ago

2. What are the solutions to the equation 6x2 - X - 40 = 0?

Andreas93 [3]

Answer:

x=-28

Step-by-step explanation:

you multiply the number first

and you calculate

then you move constant to the right

you changes the sign

done!

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3 years ago

My real estate agent told me that my house appreciated in value over the last three years. In other words, it has gone from bein

bixtya [17]

Answer:

56

Step-by-step explanation:

102.500÷×+÷110,000

56

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3 years ago

What is the exact area of a circle with a radius of six feet?

expeople1 [14]

The answer is about 113.1 feet squared

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3 years ago