All categories

3 years ago

What does k equal in kx+2y=k; if (2,-2)

Mathematics

2 answers:

Aleks [24]3 years ago

7 0

K(2)+2(-2)=k
2k-4=k
+4 +4
2k=k+4
-k -k
K=4

Debora [2.8K]3 years ago

3 0

Simplify both sides of the equation

k(2)+(2)(-2) = k

Simplify

2k-4 = k

Subtract k from both sides

2k-4-k = k-k

k-4 = 0

Add 4 to both sides

k-4+4 = 0+4

k = 4

I hope that's help !

You might be interested in

Simplify so it's in slope-intercept form (y=mx+b)<br><br> y - 125 = 55(x - 2)

AlexFokin [52]

Answer:

y = 55x + 15

Step-by-step explanation:

i think this is it, but it might not be right

4 0

3 years ago

Compute the least-squares regression line for predicting y from a given the following summary statistics. Round final answers to

qwelly [4]

Answer: Regression line equation: $\hat{y}=-1.008x+39.1704$

Step-by-step explanation:

Equation of least-squares regression line for predicting y :

$\hat{y}=b_1x+b_o$

, where $\text{Slope} (b_1)=r\dfrac{s_y}{s_x}$ , $\text{intercept}(b_0)=\bar{y}-b_1\bar{x}$

Given: $\bar{x}=8.8,\ s_x=1.5,\ s_y=1.8,\ \bar{y}=30.3,\ r=-0.84$

Then,

$b_1=(-0.84)\dfrac{ 1.8}{ 1.5}\\\\\Rightarrow\ b_1=-1.008$

Now,

$b_0=30.3-(-1.008)(8.8)=30.3+8.8704\\\\\Rightarrow\ b_0=39.1704$

Then, Regression line equation: $\hat{y}=-1.008x+39.1704$

6 0

3 years ago

Pls help me its my final exam

professor190 [17]

Answer:

could you pls put that in English mabye then I could help u :)

6 0

3 years ago

Does this pair demonstrate an enlargement or a reduction? Please help

Drupady [299]

Enlargement. the image on the right is larger, the angles are the same, and the side lengths are proportional

4 0

4 years ago

Average student loan debt after a bachelors degree increases from 18,108 in 2004 to 28,522 2014. Find the absolute change

RideAnS [48]

Answer:

The absolute change is 10,414

Step-by-step explanation:

To get the absolute change, we simply use the mathematical formula below

Absolute change = New value - Original value

From the question, the new value is 18,108 while the original value is 28,522

So the absolute change will be;

28,522-18,108 = 10,414

7 0

3 years ago